So I have a friend… picture 2001 302 block, '90's E303 roller cam, GT 40 iron heads, 1:6 roller rockers, 67 Lbs valve springs (157Lbs open pressure), hydraulic roller lifters and stock '01 push rods. cam is advanced 4 degrees... ALL THE PUSHRODS ARE BENT!
Did he use non roller push rods? They are shorter on Roller cam engine because the roller lifter is longer, 6.272 for Roller and 6.87 for the non roller push rod length. What pistons is he using? Do they have valve reliefs?
I think he said "stock" on the push rods. Its possible the longer ones were used. He did say "its a full roller now". I dont know what pistons are in the block. i cant figure out how to post pictures from my i phone on here. If i did, id post a pic of the push rods. never seen anyone bend a rod (s) like this.
He should not have had an issue with those small valve GT40 heads with an E303 in a roller engine with 1.6's, even with a 4 degree advance. I run the same cam with AFR 165's and 1.7's with an abundance of PV clearance.
Exa exactly what we thought also. That's why the guy picked this set up, it's all been done before. It's a "safe" build, nothing ground breaking about it. My guess is the cam was off by a lot. There was a question as to how the timing marks should have been lined up. Maybe that was it?
Nailed it. I highly doubt you could find any point of PTV interference no matter where you degreed that small'ish cam in. Not like they come from the factory with a 0 deck height either. And even if the degree point was the prime cause of such an issue.. you'd never bend all 16 pushrods. This type of boo-boo is the main reason we do mockups to check everything in the first place.
