AFR heads and Stock H pipe questions

Project 77 · Jul 19, 2004

I have ashot at some used AFR 165 heads, complete with rockers and pushrods, shipped for $900..Is this a decent price, and will i feel much diffrence with just an X cam? Secondly, has anyone put hi flow cats on a stock H pipe? I found one today cheap and figued since I needed Cats hi flow would work, any thoughts??

red94fiveo · Jul 19, 2004

First, yes you will feel a big difference if you go from E7's to AFR's with almost any cam. The X-cam maybe won't maximize the power gain, but you will still see a significant increase in horserpower. I wouldn't waste the money putting hi-flow cats on a stock h-pipe, I would just wait until you can afford a new x or h-pipe, which will come with high flow cats anyway.

mo_dingo · Jul 19, 2004

A h-pipe w/ cats can be found for cheap, especially used. Check the corral/stangnet/etc classifieds and see what you come up with.

AFR's will blow your mind compared to E7's. I would probably compare the change as if you went from 2.73's to 4.56's.
Scott

twittmer · Jul 20, 2004

I did almost exactly what you are talking about in your post.

With stock cam, and stock H-pipe with cats I gained 35 horsepower and 25 ft-lb's of torque by swapping to AFR 165's and 1.6 Roller Rockers.

Detailed post can be found here:

http://forums.stangnet.com/showthread.php?t=346197

Let me know what you think.

Ted

AFR heads and Stock H pipe questions

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AFR heads and Stock H pipe questions

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