OEM cylinder head castings - 1977 K10

[bucket]

What makes you say 1972? Those were used on Goodwrench crate engines, too. Thank you for checking, btw!

Because they don't say "Hecho en Mexico" on them like the Goodwrench engines did. Iirc, the older Target master engines were made in Mexico too, but not positive on that.

 

[83 Box]

I was alive and kicking when the 882s were in use. While OK, they tended to crack and the heat riser went int two of the exhaust ports (one on each side). There were a lot better open chamber heads that would make decent power and could put up with some performance abuse. I still have a short (5.565") rod 400 sbc that made a bunch of power for it's day. It's sitting in my storage unit.
One of the most important things about getting the most out of open chamber heads is getting the squish right.

The link below may be of help in your search.

Good luck.


SBC cylinder heads

 

[Intenseblue]

I was alive and kicking when the 882s were in use. While OK, they tended to crack and the heat riser went int two of the exhaust ports (one on each side). There were a lot better open chamber heads that would make decent power and could put up with some performance abuse. I still have a short (5.565") rod 400 sbc that made a bunch of power for it's day. It's sitting in my storage unit.
One of the most important things about getting the most out of open chamber heads is getting the squish right.

The link below may be of help in your search.

Good luck.


SBC cylinder heads

I've got a pretty good grip on what's available and what is good and what isn't. I know whatever came on these is going to be sh*t and know that they came with 1.72" intake valves.

This is just a fun sleeper experiment for me. I expect a bone stock looking AND sounding engine that will produce over 250 horse and 350 torque. I plan on maximizing machine work almost exclusively on stock parts.

I've already got some rebuilt by me hand ported Vortecs if I decide to change my mind. I just want to play with the original stuff.

 

[Intenseblue]

The two castings that are pulling up that seem to be possible are 882 and 624. I don't know if they were getting both for different packages, which I can't see why they would, or if maybe they were getting different castings depending on the plant assembling them.

I do know that according to 77 literature that the trucks under 6000gvwr were getting 1.94 intake valve heads, and the ones over, which would be every K-series truck were getting 1.72" intake valves and no catalytic converters.

Also there is a difference it seems in the original 929 cam in early years in advertised duration and LSA even though the .050" numbers are reported the same and the part number didn't change.

 

[idahovette]

If you are doing a lot of "hidden" work, what difference does it make if you don't have original heads.......nobody is gonna see the numbers with the valve covers on???

 

[Intenseblue]

If you are doing a lot of "hidden" work, what difference does it make if you don't have original heads.......nobody is gonna see the numbers with the valve covers on???

Ive never messed with the smog-era heads, but the castings usually have giveaways on the front face of the heads as to what they are, such as the double/camel humps. They're known as that due to outside casting markers, not the internal ones. The other part of it is OCD (I guess).

 

[vr1967]

Remember that GM went to thinner (lighter) castings in 1977, so if you get 882 castings, there is a difference in early and late heads. The early heads had a straight edge under the spark plugs, where the later heads were “scalloped” around the plugs.

Early heads

You must be registered for see images attach

Later heads

You must be registered for see images attach

The 010 blocks also got the change. Easiest way to tell the later (lighter) castings is they had the narrow pad on front, instead of the wide pad.

You must be registered for see images attach

(Pictures grabbed from the net)

 

[Intenseblue]

Remember that GM went to thinner (lighter) castings in 1977, so if you get 882 castings, there is a difference in early and late heads. The early heads had a straight edge under the spark plugs, where the later heads were “scalloped” around the plugs.

Early heads

You must be registered for see images attach

Later heads

You must be registered for see images attach

The 010 blocks also got the change. Easiest way to tell the later (lighter) castings is they had the narrow pad on front, instead of the wide pad.

You must be registered for see images attach

(Pictures grabbed from the net)

GM started the lightweight castings in late 74. I did not know how to spot the differences from an external view. Blocks, either. Thanks a bunch for the pictures!

 

[vr1967]

GM started the lightweight castings in late 74. I did not know how to spot the differences from an external view. Blocks, either. Thanks a bunch for the pictures!

Here is a 1975 cast thick block. Can see the wide pad and cast dates in photos 7 & 8

Core Short Block Engine 8-350 5.7L 2-Bolt Main Fits 1975 MONTE CARLO 1170018 | eBay

MONTE CARLO 75-77 8-350. ANYTHING LISTED AS A CORE WILL NOT HAVE A FULL WARRANTY. INTERNAL PARTS OF A CORE ARE NOT COVERED UNDER THE WARRANTY. Not covered under warranty: An engine block is found to be rebuildable but the internal parts are not in working order is NOT covered under the warranty.

www.ebay.com

Here is some Dec 1975 cast heads that are thick castings. 2nd photo shows date and flange. Plus I cropped and rotated the second photo for better viewing.

1970-1976 Chevrolet 350 v8 engine motor cylinder head 3998991 #1 | eBay

1970-1976 Chevrolet 350 v8 engine motor cylinder head 3998991 #1.

www.ebay.com

 

[Squarebody Guy]

Hope this helps you out i found this for all of us to look at
Small Block Chevy Cylinder Head Identification





Chevy Cylinder Head Casting Numbers
YearsCasting#CIDIntakeExhaustCCComments

1971-75330545307,3501.721.500174
1971-733308624001.941.5001-
1971-763338813501.721.5001-
1970-80333882350,4001.941.576
1973-803402923502.021.666
1975-76354434262,3051.721.362
1976-793587413051.721.5-
1975-76367450262,3051.721.3-
1980-843764453501.721.5001-
1969-79376495350--
1970-73399380400
1978-80460703350-
1979-854626243501.941.5-
1979-834686423501.721.5001-
1979-825175132671.721.3-
1968-693238882350-
1963-6732971853271.721.5001-
195536368392651.721.5-
195537035232651.721.5001-
1955-5637133582651.721.5-
1955-5637135692651.721.5-
1962-6737144823271.721.5
1956-5737253062651.721.5
1969-7337271853071.721.5001
195637312622651.721.5-
195737315392831.721.5-
1955-5637315442651.721.5-
1957-6637315542831.721.5-
195737315562831.721.5-
195637317622651.721.5001-
1960-6137374652831.721.5-
1962-6737377752831.721.5-
195737409972831.721.5-
195837430562831.721.5-
1962-6737430963271.721.5-
195737473632651.721.5-
1958-6137473632651.721.5-
1962-6737480563271.721.5001-
1957-583748720283-1.5
1957-6237487702831.721.5-
1958-5937487722831.721.5
1957-5937555372831.721.5
195937555382831.721.5001-
1958-5937555392831.721.5-
1957-5937555492831.721.5-
1957-6237555502831.721.5-
1962-6737555853271.721.5-
195937601162831.721.5-
1962-6437674603271.721.568
1962-6737674623271.941.5-
195937674652831.721.5001
1960-6137677542831.721.5
1960-6737677922831.721.5
1967-7037701263271.941.5
195537730122651.721.5001
1964-673774634327-
1960-673774682283,3271.721.5
1962-643774684283,3271.721.5
19583774690283-
1960-6737746922831.721.5
1962-6737824613271.941.5
1962-6737828793271.941.5
1964-6737907212831.721.5
1965-6737925633271.721.5
1963-673795896283,3271.721.5
1963-6737989963271.721.5
196738144623501.941.5001
1962-673814480283,3271.721.5
1962-673814482283,3271.721.5001
195938176802831.721.5
1966-6738176813271.721.5
196738176813501.721.5
1961-6238176822831.721.5
1955-5638368392651.721.5
1962-673836842283,3271.721.5
1963-6438369242831.721.5001
1958-6238369422831.721.5001
1958-6238370632831.721.5001
195638370642651.721.5
1955-5638370652651.721.5
195738377392831.721.5
1962-6738377752831.721.5001
1957-5838487202831.721.5
196538498203271.721.5001
1965-6738499352831.721.5
1962-6438521743271.721.5
1962-6738545202831.721.5
1962-6738545203271.721.5
1968-7638559613501.721.5
1957-6038678022831.721.5
1956-5738730642651.721.5001
1962-6738761323271.941.5
1971-7338764873501.941.5001
1960-673876775283,3271.721.5
1960-6738767753271.721.5
1962-673884520283,3271.721.5
19673890462302,3272.021.6
1962-6738914623271.941.5001
196839110113271.721.5001
1968-693911032307,3271.721.5
1958-6239122642831.721.5
1963-6439122652831.721.5
1968-7039122913271.941.5001
196739123113501.941.5
1965-6739123133271.721.5
1968-7339146363071.721.5
196739172643022.021.6
1968-693917290307,3271.721.5
1967-693917291302,3272.021.6
1968-6939172913501.941.563.305
196839172923271.941.5
1968-693917293307,3271.721.5
196639211753272.021.6
1968-7239234413501.941.5001
1968-733927185307,3501.721.5
196939271853271.721.5
1968-6939271863022.021.6
1968-6939271863272.021.6
1970-7239271863502.021.6
1969-703927187302,3502.021.6
196939271883071.721.5
196939271883271.721.5
196939271883501.721.5
196839284543071.721.5
196839284553022.021.6
196839284553272.021.6
196839284943272.021.6
196839284943502.021.6
196839284953271.941.5
1968-7339316333071.721.5
1968-7639316353501.721.5
1968-6939316373271.941.5
196839316383271.721.5
196839316393022.021.6
1968-7339323733071.721.5
1969-723932441327,3501.941.5
1968-6939324543071.721.5
197639328824001.941.5
1968-733933148350--
19683941174327--
196939468123501.721.5
1969-7039468133501.721.5
1969-703947014350--
1968-7039470413501.941.5
1970-7139515984001.941.5
1968-7739642863501.721.5
1967-7039701263271.941.5
1971-733973195400--
1964-7039734143272.021.6
1968-7239734873501.941.5
1968-7339734873502.021.6
1972-7639734934001.941.5
196739814623021.941.5
1962-6739814623271.941.5
196739814623501.941.5
1971-723986316350--
1969-793986330350--
1968-6939863393071.721.5
1970-7639863393501.721.5
1968-7139863883071.721.5
1972-7639863883501.721.5
1962-6839904623271.941.5-dbl bump
1962-6839904623272.021.6-dbl bump
1969-7239914923502.021.6-service only
197139974173071.721.500172cars
197239989164001.941.5
1972-7439989203501.941.5
1968-6939989913071.721.5
1970-7639989913501.721.5
1968-7639989933501.721.5-truck
197239989974001.941.5
1968-7662594253501.721.5
197362595153501.941.500176cars
1968-7662608563501.721.5
1972-7362720703501.721.500176
196889172913501.941.500064
1987100652063501.941.5001-EFI
88-up100881133501.941.558ccangle plug, alum., Vette, raised (.100") D-port exhaust
1980-82140144152671.721.3
1980-84140144163051.851.5-4 barrel
1984-88140192613501.941.5001
198014020517350
198114020555305
198114020556350
1985140220563501.941.5001
1980-84140223013051.851.5
1980-82140226012671.721.3
1980-86140226013051.841.5001
1986140859633501.941.5001
1986-88140891193501.941.5001-EFI
1987141010833501.941.5001-EFI
1987141011283501.941.5001-EFI
1986-88141021913501.941.5001-EFI, swirl port
1986-88141021933501.941.5001-EFI
1986-91101108103051.841.5001-EFI,swirl port, stat wgn
1986-91141010813051.841.5001-EFI, std port
1988-93141021883501.941.5001-EFI, swirl port
1986-91141021873051.841.5001-EFI, swirl port

 

[Squarebody Guy]

Number
CID
Years
Valves
Comments
10065202
350
82-86
1.94/1.50
76cc
10065203
350
82-86
1.94/1.50
76cc
10065204
350
82-86
1.94/1.50
76cc
10065205
305
82-86
1.84/1.50
58cc
10065206
350
82-86
1.94/1.50
76cc
10065207
305
82-86
1.84/1.50
58cc
10088113
350
86-92
1.94/1.50
58cc Corvette Aluminum
10120928
350
87-94
1.94/1.50
76cc
10125320
350
94-96
2.00/1.55
Gen II LT1 cast iron version,
10128374
350
92-97
2.00/1.55
Gen II LT1 53 CC angle plug aluminum
10134363
Bowtie High Port 60 CC 210 ~ 258 CC
10159550
350
87-94
1.94/1.50
76cc
10159551
305
87-94
1.84/1.50
58cc
10159552
350
87-94
1.94/1.50
76cc
10159553
305
87-94
1.84/1.50
58cc
10185040
Splayed vavle head 45 CC angle plug
10205245
350
93
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10207643
350
94-97
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10208890
265
94-96
2.00/1.55
Gen II L99 4.3 Liter V-8, cast iron, reverse flow
10215339
346
97
2.00/1.55
Gen III LS1 aluminum 68cc
10239906
305/350
96-up
1.94/1.50
68cc Vortec
12367713
2.00/1.55
GM Fast burn 62 CC 210 CC intake runner angle plug Vortec
12480005
346
0
2.125/1.625
Gen III LS1 "GTZ" aluminum 38cc angle plug
12480011
SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads.
12480034
2.02/1.60
Bowtie Phase III 64cc Angle plug 184 cc intake runner
12506450
350
87-94
1.94/1.50
76cc
12509859
305
87-94
1.84/1.50
58cc
12516852
350
87-94
1.94/1.50
76cc
12551561
350
96
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling
12552520
305
97-99
1.84/1.5
Vortec Truck L-35
12554290
350
94-96
2.00/1.55
Gen II LT1 cast iron version
12555690
350
96
2.00/1.55
Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12555690
350
96
2.00/1.55
Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12556743
325
99 & UP
2.00/1.55
Gen III 5.3L aluminum truck and van
12558059
305
97
1.84/1.5
L-35 Vortec truck
12558062
350
98
1.94/1.5
L-31 Vortec truck 64cc chambers 170cc intake port
12558062
305/350
96-up
1.94/1.50
68cc Vortec
12558806
346
97-98
2.00/1.55
Gen III LS1 aluminum 68cc
12559853
346
99 & UP
2.00/1.55
Gen III LS1 aluminum 68cc
12559895
325
00 & UP
2.00/1.55
Gen III 5.3L aluminum
12564241
346
00 & UP
2.00/1.55
Gen III LS1 aluminum 68cc
12564243
346
2
2.00/1.55
Gen III LS6 aluminum 68cc
12564243
346
2.00/1.55
Gen III LS-6 vette head 65 CC
14008856
267
79-81
1.71/1.50
14010201
305
82-85
1.84/1.50
58cc
14011034
350
80-up
2.02/1.60
64cc Bowtie
14011049
350
82-up
2.02/1.60
64cc Bowtie Aluminum
14014415
267/305
80-85
1.71/1.50
64cc Crack prone
14014416
267/305/350
80-86
1.84/1.50
64cc Crack prone
14019821
350
80-86
1.84/1.50
76cc
14019924
267
79-81
1.71/1.50
14019926
305
80-86
1.84/1.50
14020516
305/350
80-86
1.84/1.50
14020517
350
80-86
1.84/1.50
76cc
14020555
305
81
14020556
350
81
14022206
350
80
1.94/1.50
76cc
14022301
305
80-86
1.84/1.50
58cc
14022601
267/305
79-86
1.72/1.50 1.84/1.50
58cc
14022801
305
80-86
1.72/1.50
58cc
14034806
267
78-82
1.72/1.50
14034807
305
78-82
1.72/1.50
14034808
350
80-86
1.84/1.50
76cc
14034810
350
80-86
14034811
350
80-86
14039121
305
81-86
14039122
305
81-86
14071114
350
80-86
14075381
350
80-86
14079261
350
82-85
14085844
350
80-86
14089119
350
80-86
14096217
350
90-up
1.94/1.50
64cc Crate heads
14101081
305
87-94
1.84/1.50
58cc
14101083
350
88-94
1.94/1.50
64 cc
14102187
305
87-95
1.84/1.50
58cc
14102191
305/350
87-95
1.84/1.50
14102193
305/350
87-95
1.84/1.50
24502559
96-97
Bowtie SB2 1st design"mirror ports" aluminum
25534351C
2.00/1.55
Vortec Bowtie 65 CC 175 cc intake runner
25534371C
2.00/1.55
Vortec Bowtie 65 CC 206 cc intake runner
3238882
350
68-69
1.94/1.50
76cc
3297185
307/327/350
57-67
1.72/1.50
330545
350/400
71-75
2.02/1.60
76cc
330862
400
71-73
1.94/1.50
333881
350
71-76
2.02/1.60
76cc
333882
350/400
70-80
1.94/1.50
76cc
340292
350
73-80
2.02/1.60
64cc Angle plugs turbo' head No heat riser
354434
262/305
75-80
1.72/1.50
60cc
358741
262/305
71--79
1.72/1.50
359944
350
71-79
1.94/1.50
76cc
3636839
265
55
1.72/1.50
3703523
265
55
1.72/1.50
195HP
3713358
265
55-56
1.72/1.50
3713569
265
55-56
1.72/1.50
3725306
265
56
1.72/1.50
210HP Corvette
3731262
265
56
1.72/1.50
Dual Quad Corvette
3731539
283
57-66
1.72/1.50
283HP Corvette
3731544
265/283
55-61
1.72/1.50
Dual Quad Corvette
3731554
265/283
55-63
1.72/1.50
3731556
283
57
1.72/1.50
3731762
265
56
1.72/1.50
Dual Quad Corvette
3737775
283/327
62-67
1.72/1.50
3740997
283
57
1.72/1.50
Dual Quad FI & 4-brl 220-270HP
3743056
283
58
1.72/1.50
3743096
327
62-67
1.72/1.50
3747363
265
57-62
1.72/1.50
3748056
327
62-67
1.72/1.50
3748720
283
57-58
1.72/1.50
Dual Quad FI & 4-brl Corvette
3748770
283
55-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3748772
283
57-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3755537
283
57-62
1.72/1.50
3755538
283
59
1.72/1.50
250-290HP FI Corvette
3755539
283
58-62
1.72/1.50
3755549
283
57-62
1.72/1.50
3755550
283
57-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3755585
327
62-67
1.72/1.50
3755896
283
62-64
1.72/1.50
3760116
283
59
1.72/1.50
Dual Quad FI & 4-brl Corvette
376445
350
80-84
1.72/1.50
376450
262/305
75-76
1.72/1.50
376495
350
Jun-79
1.94/1.50
76cc
3767460
265/283/327
55-67
1.72/1.50
Car & Truck Corvette
3767462
327
62-67
1.72/1.50
3767465
283
60-61
1.72/1.50
Dual Quad FI & 4-brl Corvette
3767754
283
60-61
1.72/1.50
3767792
283
60-67
1.72/1.50
3770126
327/350
67-70
1.94/1.50
3773012
265
55
1.72/1.50
3774634
327
64-67
1.72/1.50
3774682
283/327
60-67
1.72/1.50
3774684
283/327
57-67
1.72/1.50
3774690
283
58
1.72/1.50
FI Corvette
3774692
283
58-64
1.72/1.50
Dual Quad FI & 4-brl Corvette
3782461
302/327/350
61-70
1.94/1.50
Dual Quad FI & 4-brl Corvette 2.02/1.60 Doubble humps 64cc
3782462
327
67
1.94/1.50
Corvette 2.02/1.60
3792563
327
65-67
3795896
283/307/327
58-72
1.72/1.50
60cc
3796896
283
64-67
1.72/1.50
60cc Chevy II
3798996
327
63-67
3814462
350
67
1.94/1.50
3814480
283/327
60-67
1.72/1.50
3814482
327
62-67
1.72/1.50
3817680
283
59
1.72/1.50
FI 4-brl
3817681
327
62-67
1.72/1.50
3817682
283
61-62
1.72/1.50
3836839
265
55
1.72/1.50
3836842
283/327
57-67
1.72/1.50
3836924
283
63-64
1.72/1.50
3836942
283
58-62
1.72/1.50
3837063
283
58-62
1.72/1.50
3837064
265/283
56-62
1.72/1.50
3837065
265
55-56
1.72/1.50
3837775
283/327
62-67
1.72/1.50
383882
400
71-73
3848720
283
57-58
1.72/1.50
3849820
327
65
1.72/1.50
3854520
283/327
62-67
1.72/1.50
3867802
283
57-60
1.72/1.50
FI Corvette
3873064
265
56-57
1.72/1.50
3876487
350
71-73
1.94/1.50
76cc
3876775
283/327
57-67
1.72/1.50
76cc
3878775
327
64-67
1.72/1.50
3884520
283/327
60-67
1.72/1.50
60cc
3890462
302/327/350
62-68
1.94/1.50 2.02/1.60
64cc Doubble humps
3891462
302/327/350
62-67
1.94/1.50 2.02/1.60
64cc
3891492
327
64-67
1.94/1.50
3911011
327
68
3911032
307/327
68-70
1.72/1.50
70cc
3912264
283
58-62
1.72/1.50
3912265
283
63-64
1.72/1.50
3912291
302/327/350
68-70
1.94/1.50 2.02/1.60
64ccDoubble humps
3912311
350
67
1.94/1.50
3912313
327
65-73
1.72/1.50
3917264
302
67
2.02/1.60
64cc Z-28
3917290
327
68-70
1.72/1.50
3917291
302/327/350
62-69
1.94/1.50 2.02/1.60
64cc Doubble humps
3917292
327
67-68
1.94/1.50
3917293
307/327
68-69
1.72/1.50
76cc
3921175
327
66
1.94/1.50
3923441
350
67-76
1.94/1.50
76cc
3927185
307/327/350
68-79
1.72/1.50
70cc
3927186
302/327/350
68-72
1.94/1.50 2.02/1.60
64cc Doubble humps Bolt holes
3927187
302/350
69-70
2.02/1.60
64cc Corvette
3927188
307/327/350
69
1.72/1.50
76cc
3928454
307
68
1.72/1.50
3928455
302/327
68
2.02/1.60
64cc 325 & 350HP
3928494
327
68
2.02/1.60
64cc 350HP 4-brl
3928495
327
68
1.72/1.50
3931633
307
68-73
1.72/1.50
3931635
350
68-76
1.94/1.50
76cc
3931637
327
68-69
3931638
327
68
1.72/1.50
3931639
302
68
2.02/1.60
64cc
3932441
327/350
67-79
1.94/1.50
76cc
3932454
307/350
68-799
1.72/1.50
76cc
3933148
350
68-73
76cc
3941174
327
68
1.72/1.50
3946812
350
69
1.72/1.50
3946813
350
69-79
76cc
3947014
350
68-70
3947040
302/327/350
68-70
1.94/1.50 2.02/1.60
64cc
3947041
302/327/350
68-79
1.94/1.50 2.02/1.60
64cc
3951598
400
70-71
1.94/1.50
76cc
3961598
400
70-76
1.94/1.50
76cc
3964286
350
68-77
1.94/1.50
76cc
3970126
327/350
67-79
1.72/1.50
3973195
400
71-73
1.94/1.50
76cc
3973414
327/350
64-70
2.02/1.60
64cc Z-28 LT-1 corvette
3973487
350
68-79
1.94/1.50 2.02/1.60
76cc
3973487X
350
68-73
1.94/1.50 2.02/1.60
76cc X cast 10cc's
3973493
400
70-76
1.94/1.50
76cc
3986316
350
71-72
2.02/1.60
76cc
3986330
350
69-79
1.94/1.50
76cc
3986339
307/350
68-79
1.72/1.50
76cc
3986388
350
68-79
1.72/1.50
76cc
3990941
307/350
68-82
3991492
327/350
68-73
1.94/1.50 2.02/1.60
64cc Angle plug
399380
400
70-73
76cc
3997417
307
71
1.72/1.50
3998916
350/400
72-75
2.02/1.60
76cc
3998920
350
72-75
1.94/1.50
76cc
3998991
307/350
68-79
1.72/1.50
76cc
3998993
307/350
68-79
1.71/1.50 1.94/1.50
76cc
3998997
350/400
71-73
1.94/1.50
76cc
426424
305/350/400
72-82
1.72/1.50
458624
350
69-84
1.94/1.50
76cc
460703
350
78-80
1.94/1.50
76cc
462614
305/350
77-79
1.72/1.50
462624
350
76-87
1.94/1.50 2.02/1.60
76cc Crack prone
464033
350
76-86
1.94/1.50
76cc
464036
350
76-86
1.94/1.50
76cc
468642
350/400
75-84
1.72/1.50
471513
267
79-81
1.72/1.50
472424
305
76-79
1.72/1.50
474213
305
78-82
1.72/1.50
474214
350
78-82
1.94/1.50
76cc
475590
400
78-82
1.94/1.50
76cc
517513
267
79-81
1.72/1.50
6259515
350
73
6260855
350
73-75
1.94/1.50
76cc
6260856
350
73-76
1.94/1.50
76cc
6272070
350
73
10045427
Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port
10049875
Pontiac/Chevy Aluminum Small Rectangle port
10051128
454
90-94
2.19/1.88
72cc Bowtie Aluminum Rectangular port 400cc intake
10052902
427
Oval Port Open chamber
10101136
454
91-94
2.06/1.77
Open chamber Oval port
10101140
366/427
91-01
Oval Port Closed chamber
10114156
454
91-01
Oval Port Open chamber
10121033
454
78-88
2.06/1.77
Open chamber Oval port
10141279
454
96-01
Vortec 7400 100cc chambers Oval Port
10487052
366
77-90
Oval Port Open chamber
12352783
454
79-93
2.06/1.77
Open chamber Oval port
12363391
Oval Port Bowtie Aluminum Signature Series
12363401
Rectangle Port Bowtie Aluminum Signature Series
12558162
496
01 & UP
Gen.VII Vortec 8100 8.1L truck
12560241
454
98-01
Vortec 7400 100cc chambers Oval Port
12562932
454/502
91-95
Oval Port truck crate motor 118cc chambers
12562934
502
00 & UP
GenVI Marine
14011077
454
89-94
2.19/1.88
118cc Replacement Aluminum Rectangular port 295cc intake
14025175
454
83-93
2.06/1.77
Open chamber Oval port
14044861
454
89-94
2.19/1.88
106cc Bowtie Aluminum Rectangular port 380cc intake
14081044
454
86-90
2.06/1.77
Open chamber Oval port
14081045
454
78-87
Oval Port Open chamber
14081052
366/427/454
85-87
Oval Port Open chamber
14092359
427
86-89
2.06/1.77
Open chamber Oval port
14092360
454
85-89
2.06/1.77
Open chamber Oval port
14096188
454
87-94
2.19/1.88
118cc Replacement Rectangular port 325cc intake
14097088
502
89-date
2.19/1.88
118cc Replacement Rectangular port 325cc intake GEN V
14101398
454
86-90
2.06/1.77
Open chamber Oval port
24502585
Olds/Chevy DRCE 2 Pro Stock aluminum
330864
366/427/454
70-81
2.06/1.77
Open chamber Oval port
330865
366/427/454
70-84
2.06/1.77
Open chamber Oval port
330866
366/427
68-78
Oval Port Open chamber
330867
427
68-73
Oval Port Open chamber
336768
427
73-76
Oval Port Open chamber
336781
454
73-85
2.06/1.77
113cc Oval port
343771
366/427/454
68-85
2.06/1.77
Open chamber Oval port
343772
366/427/454
76-84
2.06/1.77
Open chamber Oval port
343783
454
75-78
2.06/1.77
Open chamber Oval port
346236
454
75-87
2.06/1.77
113cc Oval port
346238
454
75-87
2.06/1.77
113cc Oval port
352625
454
70-76
Oval Port Open chamber
353049
454
70-73
2.06/1.77
113cc Oval port
366765
427/454
73-84
2.06/1.77
Open chamber Oval port
3732791
348
58
3758379
348
59-61
3759256
348
58
3767738
348
59-61
3781147
348
60-61
High Perf
3795586
409
61
360HP
3814690
409
62-64
High Perf
3819333
348/409
62-65
3830817
409
63-65
340HP
3837731
409
63
High Perf Z-11
3852583
409
65
400HP
3856206
396
65-66
2.06/1.77
98cc Oval port
3856208
396
65
2.06/1.77
109cc Z-16/L-37 Rectangular port
3856213
366
66-70
2.06/1.77
Closed chamber Oval port
3856260
396
68
Oval Port Closed chamber
3872702
396/427
66
2.06/1.77
98cc Oval port L-34/L-35/L-36
3873858
396/427
66-67
2.06/1.77
109cc L-78/L-72 Rectangular port
3876875
427
66-70
2.06/1.77
Closed chamber Oval port
3904390
396/427
66-67
2.06/1.77
98cc Oval port L-34/L-35/L-36
3904391
396/427
65-67
2.06/1.77
107cc L-78/L-71/L-72 Rectangular port
3904392
427
67
2.19/1.88
106cc L-88/L-89 Aluminum Rectangular port
3904393
366
66-68
2.06/1.77
Closed chamber Oval port
3908952
427
67
Oval Port Open chamber
3909802
396/427
66-67
2.06/1.77
100cc Oval port L-34/L-35/L-36/L-68
3917215
396/427
67-69
2.06/1.77
100cc Oval port L-34/L-35
3917219
366/427
66-70
2.06/1.77
Closed chamber Oval port
3919840
396/427
67-69
2.06/1.77
107cc L-78/L-71/L-72 Rectangular port
3919842
396/427
68-69
2.19/1.88
106cc L-88/L-89 Aluminum Rectangular port
3931063
396/427
69-70
2.06/1.77
100cc Oval port L-34/L-35
3933148
366/396/427
69
2.06/1.77
122cc Oval port
3933149
427
69-70
2.06/1.77
122cc Oval port
3935401
427
68-76
Oval Port Open chamber
3946074
396/454
69-71
2.19/1.88
118cc L-88/ZL-1 Aluminum Rectangular port
3964280
427/454
66-70
2.06/1.77
Closed chamber Oval port
3964290
396/402/427/454
69-70
2.06/1.77
100cc Oval port
3964291
396/402/427/454
69-70
2.19/1.88
108cc L-78/L-71/L-72/LS-6 Rectangular port 325cc intake
3964292
454
70
2.19/1.88
109cc LS-6 Rectangular port
3965198
396
69
2.06/1.77
Open chamber Oval port
3975950
366/427
68-70
2.06/1.77
Closed chamber Oval port
3986133
366/427
70-85
2.06/1.77
Closed chamber Oval port
3986136
366/427
70-84
2.06/1.77
Closed chamber Oval port
3993820
402/454
71
2.06/1.77
113cc Oval port
3994025
454
71
2.19/1.88
118cc LS-6 Rectangular port
3994026
454
71
2.19/1.88
118cc LS-6 Rectangular port
3999241
402/454
72
2.06/1.77
113cc Oval port
473328
366
68-85
2.06/1.77
Open chamber Oval port
6258723
454
71
2.19/1.88
118cc LS-6 Rectangular port
6272292
402/454
71
2.06/1.77
Open chamber Oval port
6272990
454
71-94
2.19/1.88
118cc Replacement Rectangular port 325cc intake

 

[bucket]

^^^Holy rusted metal, Batman!^^^

I didn't know we could even make a post that long.