cheetha94607

currently have my 165 on my truck but plan to switch to my 91 notch.
im trying to find out with 9:5 compression what would i be looking at realalisticly for n/a hp and torque(rear wheel). also how much power can these heads make n/a 400-500hp or so.

cheetha94607

here is some pic of the heads:

http://www.cardomain.com/member_page...051_9_full.jpg


http://www.cardomain.com/member_page...051_4_full.jpg

silver91gt

on a 302 theyll make around 300rwhp and mabye 350 with a 347.

but the power prouced wil vary, depending on the camshaft you use.

67mustang302

Some of the calulations used to figure max horsepower based on head flow show that an AFR 165 could make as much as 500hp or a bit more, but whether you could actually get that out of an engine is another issue. You'd need a real long duration camshaft in a 302 to let the engine breathe enough to make that kind of power, and the streetability would go away real quickly with a cam of that magnitude. 400hp can be attained in a streetable package with some effort.

stang8689

Depends on cam, i saw them make 400 on 347

5spd GT

It depends on the ENTIRE package.

If you just base it off flow and the old addage, 2-2.1 x CFM. You are looking at right around 500 HP.

Killercanary on many forums made 356 rwhp on a 8.88:1 compression 331, with a 302 camshaft and Holley Systemax intake, with AFR 165cc heads.