H - Pipes

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.

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,095
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
Again here I go with Engine Masters. But an H and X are both better than straight pipes. H pipe won in tq by 2 H.P. and the X won in H.P. by like 2. Nothing you would ever feel.

I just like seeing the comparisons on the dyno by engine masters and they love the Chevy. Lol
Do you remember the RPM where the gain showed? I'm guessing it's 5000 and up..
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
16,034
Reaction score
25,604
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
Blowin snow at 4k and soundin like a truck pull... IM IN!!!
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,893
Reaction score
18,768
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
Do you remember the RPM where the gain showed? I'm guessing it's 5000 and up..

Good question. I think I'd go for a 3K rpm for street.
 

Frankenchevy

Proverbs 16:18
Joined
Jan 3, 2018
Posts
6,101
Reaction score
7,813
Location
USA
First Name
Jeremy
Truck Year
Square
Truck Model
CUCV
Engine Size
Small
It definitely quiets it down accross the rev range. It helps with scavenging, which I think is more of a low rev thing. Kind of like header primaries that are too big and reduce scavenging hurts low end torque.

edit: and I think the fact that it increases torque would suggest it helps down low.
 
Last edited:

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,095
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
Sadly the welds eventually rust and crack, causing leaky drama down the road. Once that happens you can just keep repairing it on and on. I finally
kinda let mine fall off and I welded patchs on the holes.
 

Doppleganger

Full Access Member
Joined
May 24, 2019
Posts
12,823
Reaction score
59,459
Location
OH-MI: Just like it sounds
First Name
Chris
Truck Year
1985
Truck Model
K20
Engine Size
5.7
I have seen T's - in stainless - but none in the US.....which seems odd. The kits Summit and Jegs sells have the T's - but IIRC they're not SS.
 

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,095
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
Stainless exhaust pipe is actually really low grade stainless, at least the stuff I see up here in Cancan.. of course it doesn't rust like normal
steel, but it's not the stainless you would imagine.
 

Arkansas_V8

Proud Redneck
Joined
Jul 1, 2019
Posts
3,022
Reaction score
3,963
Location
Springdale, Arkansas
First Name
Brent
Truck Year
88
Truck Model
V20 Suburban
Engine Size
5.7
Do you remember the RPM where the gain showed? I'm guessing it's 5000 and up..

Torque was up across the board (but by so little it doesn't matter on either number) Horsepower you are right.
You must be registered for see images attach

You must be registered for see images attach
 
Last edited:

Rusty Nail

Full Access Member
Joined
Jan 29, 2015
Posts
10,041
Reaction score
10,138
Location
the other side of the internet
First Name
Rusty
Truck Year
1977
Truck Model
C20
Engine Size
350sbc
Dude a kit?
Srsly.
It's 2 feet of pipe! If your exhaust guy wants more than 20-30 bucks for that ten minutes worth of gas , u'd be better off finding a new exhaust guy. Just sayin - he's got a pile of pipe you could use.
I put an H pipe in the SS freakin I dunno...20 years ago?
I bet it would kick my ass if I gave it any ****...best part about an "H" pipe is it doesn't pop.
Ever.
Kick.Ass.
ONLY smooth,mellow,plushness.

Plush.Ness.

Don"t you deserve it?
Doesn't your truck?

You'll never go back to "true duals".... :33:
 

75Monza

Full Access Member
Joined
May 5, 2017
Posts
1,362
Reaction score
2,844
Location
Colville, Washington
First Name
Jeremy
Truck Year
1980, 1982, 1985
Truck Model
K30, K20, K20
Engine Size
454, 383, 350
Either an X or H pipe are a big improvement for sbc or bbc, I prefer x pipe for street car and h pipe for truck, since you can monkey with your low end torque better with h pipe diameter, length and location. Mostly the deeper sound of h pipe.
 

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,095
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
Dude a kit?
Srsly.
It's 2 feet of pipe! If your exhaust guy wants more than 20-30 bucks for that ten minutes worth of gas , u'd be better off finding a new exhaust guy. Just sayin - he's got a pile of pipe you could use.
I put an H pipe in the SS freakin I dunno...20 years ago?
I bet it would kick my ass if I gave it any ****...best part about an "H" pipe is it doesn't pop.
Ever.
Kick.Ass.
ONLY smooth,mellow,plushness.

Plush.Ness.

Don"t you deserve it?
Doesn't your truck?

You'll never go back to "true duals".... :33:
It's the labor... without a 'kit' you would have to make the 'T's and fit the pipe. Time consuming pain in the ass ****, not a 5 minute job.
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
16,034
Reaction score
25,604
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
Torque was up across the board (but by so little it doesn't matter on either number) Horsepower you are right.
You must be registered for see images attach

You must be registered for see images attach
I remember watchin this episode
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
16,034
Reaction score
25,604
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
Either an X or H pipe are a big improvement for sbc or bbc, I prefer x pipe for street car and h pipe for truck, since you can monkey with your low end torque better with h pipe diameter, length and location. Mostly the deeper sound of h pipe.
If ive got 3" and wanted to add an "H" would it be better smaller or the same?
 

Rusty Nail

Full Access Member
Joined
Jan 29, 2015
Posts
10,041
Reaction score
10,138
Location
the other side of the internet
First Name
Rusty
Truck Year
1977
Truck Model
C20
Engine Size
350sbc
The same.

Totally a five minute job, ive seen it done. There is no Tee, melt a hole, melt a hole + 2 welds. 5 minute job.
 

Forum statistics

Threads
44,421
Posts
957,406
Members
36,769
Latest member
Bowtie72
Top