Roller and non-roller block differences

BAD BOB · 02-01-2009, 07:37 PM

whats the difference between a 302 roller and non-roller block. Is it just the lifters and the hold downs for the lifters or are the lifter holes machined different? Can i just put roller lifters in a non roller block and make hold downs for it?

gearmesh, inc. · 02-01-2009, 11:22 PM

The roller 302 blocks have taller lifter bores to support the taller factory roller lifters. But, nothing is keeping your from running a mechanical roller cam in a non-roller block as mechanical roller lifters are the same height as non-roller hydraulic lifters.

02-01-2009, 07:37 PM	#1
BAD BOB Senior Member Join Date: Mar 2008 Location: SUMMERVILLE Posts: 3,681	Roller and non-roller block differences whats the difference between a 302 roller and non-roller block. Is it just the lifters and the hold downs for the lifters or are the lifter holes machined different? Can i just put roller lifters in a non roller block and make hold downs for it?

02-01-2009, 11:22 PM	#2
gearmesh, inc. creepy azz cracka Join Date: Nov 2008 Location: Summerville Posts: 1,587	The roller 302 blocks have taller lifter bores to support the taller factory roller lifters. But, nothing is keeping your from running a mechanical roller cam in a non-roller block as mechanical roller lifters are the same height as non-roller hydraulic lifters.