1964 Chevy ll ls1/t56 swap

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Craig Nedrow

NADAR UNDER THE RADAR
Joined
Sep 1, 2018
Posts
1,276
Reaction score
2,813
Location
Washington State
First Name
Craig
Truck Year
1973 (have two), 1985
Truck Model
K10, K20, C20
Engine Size
350, 454, 6.2 Detroit
Dang you are getting it done Ben!
 

Tonimus

Full Access Member
Joined
Sep 17, 2024
Posts
214
Reaction score
421
Location
Phoenix
First Name
Tony
Truck Year
1978
Truck Model
C10 Suburban
Engine Size
454
'63 with a 427 SBC and a 4L80e

You must be registered for see images attach


I HIGHLY recommend replacing the inner fenders.
 

Z28 Guy

Full Access Member
Joined
Oct 7, 2022
Posts
64
Reaction score
151
Location
mississippi
First Name
Jermaine
Truck Year
1976
Truck Model
C20
Engine Size
454
What head, cam and intake you plan on doing on the ls1 ?
My 2000 Z28 6 speed car puts down right at 500 rwhp on a very stingy 48 inch drum dyno. Thats on a factory 799 head caating on top of a LS2 bottom end with a cam motion camshaft. My goals is 10s all motor.
 

Attachments

  • Screenshot_20250401_143425_Messages.jpg
    Screenshot_20250401_143425_Messages.jpg
    146 KB · Views: 4
  • IMG_20250401_035926.jpg
    IMG_20250401_035926.jpg
    118.9 KB · Views: 4

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,177
Reaction score
9,421
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
Personally, I'd save cosmetic bodywork and paintwork for last. Just do the underside surgery first and put it all together and get everything gapped and fitting well. Then do the engine and drivetrain. The reason being that it's hard not to screw up the body and paint while doing all the drivetrain stuff.

Then I'd also go straight for the LS1 and T56. Imho, that's too much work, doing the drivetrain twice.

Did you mean C4 front suspension?
Yep, that's my vote. Except, it's not all that hard to bolt in a small block and Th350 first while the LS1 and T56 combo is being built. It's a lot of work to get that combo in with all conversion BS and adding wiring and such.
 

Craig Nedrow

NADAR UNDER THE RADAR
Joined
Sep 1, 2018
Posts
1,276
Reaction score
2,813
Location
Washington State
First Name
Craig
Truck Year
1973 (have two), 1985
Truck Model
K10, K20, C20
Engine Size
350, 454, 6.2 Detroit
Stock heads, 243’s, have not gotten a cam…..yet. I had a 1998 Z28 with a LS1 small cam, and it would get you in trouble fast. It had a 4l60e pos that blew up twice. This is a jump in and go anywhere car, so reliability and easy service are important. 4:11 gears will still let me cruse, run at the salt flats, and with a 2.64 first gear, should be responsive. Should have the money to complete it this month, so will be hitting it hard. I am hiring a friend who is the head man at the shop I used to work. He is a drag racer and a Mopar lover, has a stroked 440, dyno 668 hp. He is a good hand and real fun to work with. Stock wiring harness W/ 896 ecu.
 
Last edited:

Craig Nedrow

NADAR UNDER THE RADAR
Joined
Sep 1, 2018
Posts
1,276
Reaction score
2,813
Location
Washington State
First Name
Craig
Truck Year
1973 (have two), 1985
Truck Model
K10, K20, C20
Engine Size
350, 454, 6.2 Detroit
^^^^^^^^Oh NO.....don't let a mopaaar guy work on it^^^^^^^^^lol
I know Perry!!!
Anyway I did some calculations and with 4:56's 28" tire, in fifth, (.74) at 135 MPH, RPM are a lazy 5467, and the .05 6th is barely turning over at 3694, so she's gonna be a cruiser.
 
Last edited:

Bennyt

Full Access Member
Joined
May 17, 2019
Posts
1,283
Reaction score
2,069
Location
Surprise
First Name
Ben
Truck Year
1977
Truck Model
C10
Engine Size
350
I know Perry!!!
Anyway I did some calculations and with 4:56's 28" tire, in fifth, (.74) at 135 MPH, RPM are a lazy 5467, and the .05 6th is barely turning over at 3694, so she's gonna be a cruiser.
Hard to fit 28" tires, probably 26.5 at most
 

Z28 Guy

Full Access Member
Joined
Oct 7, 2022
Posts
64
Reaction score
151
Location
mississippi
First Name
Jermaine
Truck Year
1976
Truck Model
C20
Engine Size
454
i would look into a Torquer V2 cam. The cam checks out on all points. It sounds good, puts power down on the dyno, hard to beat at the track and it has torque everywhere. We just did a ls1 car that put down on 450 rwhp with this camshaft with hand ported 243 heads.
 

idahovette

Full Access Member
Joined
Aug 7, 2016
Posts
7,661
Reaction score
16,919
Location
Weiser Idaho
First Name
Perry
Truck Year
1975-1979
Truck Model
K20-K10
Engine Size
350
^^^^^^^^^^^Yep a PEDAL CAR!!!!!!!^^^^^^^^^
 

Forum statistics

Threads
45,326
Posts
980,958
Members
38,360
Latest member
onasunday
Top