five0fm

alright guys i have a non roller 351 want to convert it to roller. i did some searching and i found that most people here say to get the retro lifters b/c of oiling problems with stock lifters (if you were todrill holes for the spyder bone and dog bones) im more confused on the cam issue. some say you need a smaller base cirlce cam and others say its just the lifters that need to be changed. can anyone give me some part numbers on roller cams that would fit in a late 80s early 90s nonroller 351 block? will a regular cam fit or do you need a reduced base cirlce cam? i couldnt find a straight answer..thanks

PJC Racing

Do not get a retro kit, they use smal base circle cams. The small base circle cams have excess shaft flex at rpm and have been proven to break due to this flex. If you want a to run a roller cam in a non-roller block, it is recommended that you use a standard base circle cam and link bar lifters.

__________________
89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress)
86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works
2003 Mach 1: programer, exhaust, 4.10'

five0fm

ok so i can use something like these http://store.summitracing.com/partde...p;autoview=skuand a normal cam like the the one in my 5.0 ( not the same one but the hyd roller?)

woodsy

correct, its very simple, use a link bar lifter, crane or comps and ANY hyd roller camshaft. By using a link bar lifter you are NOT confined to a pile of crap small base circle camshaft

five0fm

awesome...i thought i had to use a small base cam to fit in the non roller block. so i shouldnt have any clearance problems using a hyd roller? comp cams sells the link bar lifters for for about 355 so ill pick those up.

woodsy

Its not a clearance issue, the issue is the oil hole on a stock style hyd roller is placed differently being the lifter is taller and you are using a non roller block with a shorter lifter bore. Where are you finding the comp 8931 lifters for 355, I need to buy a dozen sets at that price.

five0fm

summit. part # cca-838-16 but only for mechanical rollers. still a good deal?

woodsy

you need 8931-16's