projectresto83

What are the physical differences in the the 2 exactly? Are the lifter bores taller to accommidate the roller lifters? I know how to use a roller cam in a non roller block so don't tell me that plz.

Joel5.0

Yep.... roller block = tall lifter boss block

projectresto83

That and the holes to bolt down the spider tray right?

mjr46

^^^correct

projectresto83

Rodger Dodger.... Thanks guys.

stanguy306

LOL ooorr you can run a non roller block convert it to roller and buy 7 million dollar linked lifters.

projectresto83

OOOOOrrrrrrr I can buy a $265 comp cams thumper retrofit cam, which sound bad *** but I havn't seen anyone use it, and drill and tap the block for the spider tray and run regular roller lifters and pushrods .

I think I am gonna just buy a $100 lunati flat tappet cam and be done with it.
292 duration with .512 lift and 110 LSA

mjr46

I would not buy a reduced base circle cam period = weaker

projectresto83

Yea and they are more expensive. I can get the same performance from a normal flat tappet cam. The lunati cam I was looking at has the same specs as the comp cam you showed me mjr except it has longer duration on both intake and exhaust.
comp
http://store.summitracing.com/partde...3&autoview=sku
lunati
http://store.summitracing.com/partde...1&autoview=sku