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#1 |
Senior Member
Join Date: Nov 2005
Location: Portland Oregon
Posts: 287
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TPI Question (Size of Runners On Heads)?
Is there a certain size runner you need on your heads when you are running TPI?
Thanks, JRB |
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#2 |
saving one more
Join Date: Sep 2005
Location: Pryor Creek, Oklahoma
Posts: 3,066
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Re: TPI Question (Size of Runners On Heads)?
I wouldn't think so, I have seen a TPI on all different Chevy engines. I would think that the runner length on the head would just shift the torgue & horsepower peaks in the curve. More low end, less top end with long runners & vice versa with short runners.
If I remeber correctly.
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72 Chevy longbed - now for parts 69 Chevy short fleet - needing some love 70 RS Camaro - needing more love driver - 96 GMC X-cab |
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#3 |
Senior Member
![]() Join Date: Dec 1999
Location: Southern California
Posts: 2,811
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Re: TPI Question (Size of Runners On Heads)?
Street an Performance makes a large runner setup for the TPI. They also have a manifold that will fit the TPI to the Fast Burn style heads. From what I have read it seems to be understood the Chevy TPI poops out at under 400hp. I am going to have the large runner setup and extrude hone the entire intake assembly for the 420hp 383 crate motor.
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Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746 |
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