thelast_graham

The situation I am in is with a 1991 SBC 350 from a 1500 fullsize pickup.. I purchased the engine from A GUY who said it "was built by a race car driver" and has a hydralic cam... woah!! Right? LOL Not really... I installed my 1990 Camaro Tuned port with 52mm throttle body, fully ported intake and LT1 injectors.. 1 week after installing a new 700R4 I have needed since before the TPI install.. I spun a bearing.. .. Now it is time to rebuild the motor.. I am wanting to install the stock Cam from the L98 motor.. My motor does not have the provisions for the roller cam.. All I know is... I will have to tap my motor in 3 places for the screws from the spider.. I have the spider, wishbones and lifters.. My question to everyone ---> What all do I have todo to convert to a roller cam?

This ad is not displayed to registered members. Register your free account today and become a member on ThirdGen!

Orr89RocZ

I think you need retrofit lifters since the spyder has bosses for the bolts and the lifter bores have retaining plates that fit on top to keep the lifters from moving.

I dont think a nonroller block has that feature so the retrofit lifters are needed, and no spider i believe.

The roller cam uses a thrust plate/retainer plate on the front of the block. Non rollers i believe do not have that feature as well, and need a thrust bushing of some sort on the timing cover to keep the cam from walking forward. L98 cam has a stepped nose as well and will require a roller timing set for OEM hydraulic roller cam motor. I believe you can use a thrust bushing on that style timing set but I'm not 100% sure.

Others who have done this stuff before can further comment

__________________

1989 Twin Turbo IROC-Z
"Twin Turbo 401 Buildup Pics "
"FQuick Garage"
9.86 at 141 mph 14psi, street tune