ok, so i got a question. i don't want to pay $500 for some crane roller lifters. what is required to use the roller lifters from a roller 302? will the retainer bolt into the lifter valley by just drilling the two holes, and using the lifter retainers? is it that simple or am i really missing something here? i'm a pontiac guy tired of throwing money into those boat anchors, so i was just wondering about that.thanks, heff
thats a great question... have you got a retainer. and some oem lifters... drop it in and see where it lines up.... the cams are the same... the lifters...i just don't have a 289 block to compare...i would think with how cheep a roller cam 302 can be had for... and some years of the HO EFI motors even came with forged pistons from ford.. that would be the way to go... only problems would be if you have a 5 bolt block... instead of the later 6 bolt motors... the 80 up motors have a different crank balance and require flywheel and harmonic balancers to match...
i'm gonna be getting the retainer and oem lifters and try it out, i was just wondering if someone had already done this and could say 'ya do it or' or 'no that's stupid'. so i'll let you guys know what i find out
It won't work, you have to get the conversion lifters from Crane, Comp, FRPP, doesn't matter which company, you have to use the conversion lifters.The reason you can't use OEM lifters, they're too tall, and will stick out of the old 289 lifter bores (which are short because they were only designed for flat tappet lifters) and then they won't hold oil pressure.So, you've got two options, get the conversion lifters, or go to a later model 5.0L block that has taller lifter bores so you can use OE style lifters.
well crap...i guess i'll just go with the 3rd option, use the good ol hydraulic lifters. they only reason i don't want to go with the conversion lifters is they're too damn expensive, and after pontiacs, i'm ready for a cheapy engine that isn't a gm.thanks for the info guys