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on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?

93F150 wrote:on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?

Boost is just a measure of restriction and means nothing really. Figure 500hp on a 302 block is going to be the limit. How ever much boost it takes to get you around that is where I would stop (if you want it to live).

stock 302 block with factory forged pistons (pre 94+) with nothing done to it will take 14-15lbs or more. but the guy above is right 500HP is the limit once you are around 450+WHP its a waiting game.

wazslow wrote:

93F150 wrote:on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?

Boost is just a measure of restriction and means nothing really. Figure 500hp on a 302 block is going to be the limit. How ever much boost it takes to get you around that is where I would stop (if you want it to live).

ITS HAS BEEN PROVEN THAT A STOCK BOTTOM END 302 HAS MADE 815RWP WITH A 76MM TURBO,IT STAYED TOGETHER FOR 2 YEARS BEFORE IT POPPED...

DOUBLE POST

yea but how much did he run it and how long was it hurt before it let go ?
internet is full of pictures of guys who took perfectly good running 302's apart to find the block split or a main saddle broken out of the block

buddy had a nitous 302 in the 9's that we wanted to step up and just change pistons , imagine our surprise when we pulled off the timing cover and bell housing and found the block split in half , ran fine though
johns right , after 500 hp its just a waiting game

d2racer wrote:yea but how much did he run it and how long was it hurt before it let go ?
internet is full of pictures of guys who took perfectly good running 302's apart to find the block split or a main saddle broken out of the block

buddy had a nitous 302 in the 9's that we wanted to step up and just change pistons , imagine our surprise when we pulled off the timing cover and bell housing and found the block split in half , ran fine though
johns right , after 500 hp its just a waiting game

he ran raced the car for 2 years,it even ran several 275 races.....it was built n tuned by HED out in north carolina ... i also have 2 friends that have stock block 302's in their car one had a procharger p1sc setup with a stick n made 589rwhp n has been raced n beat for the last 8 years,the other has also has a stock block with a S-trim made 550ish n hasnt broken it yet... i also know several people with stock bottom end 302's make serious power with turbo setups....i am building a stock bottom end turbo car now,so once i get it on the dyno i will ost the dyno numbers..