2.02 will not fit with stock pistons, TW heads are the only ones that work with stock pistons. The e-brock performer is more then enough for a mild 302.
is it expensive or quite troubling to notch the stock pistons? can it be done with the pistons still sitting in the block? ..i know nothing about it, or is it possible for 2.02 valves to be changed over back to 1.90 valves?
You can "driveway" cut your pistons but not really worth the time imo. You can change them to 1.90's but it pretty pointless when you can just buy the preformer with 1.90's which is more than enough for a mild 302/306 with a power adder (to a point). If you really want 2.02 TW heads will work with stock pistons with no piston to valve up to certain lift (5.42 lift I think).
You can "driveway" cut your pistons but not really worth the time imo. You can change them to 1.90's but it pretty pointless when you can just buy the preformer with 1.90's which is more than enough for a mild 302/306 with a power adder (to a point). If you really want 2.02 TW heads will work with stock pistons with no piston to valve up to certain lift (5.42 lift I think).
im not sure yet, but i think their is some used ones i just came across and i think they are 2.02, waiting for the seller to get back to me on that, and if they check out ok theyre cheaper then buyin new ones. ,so whats involved in changing the valve sizes? other then just buying new valves
You'll need a spring compresser, once you compress the springs the "locks" will come loose and the springs fall out. It's a good ideal just send them to a machine shop and have them install the new valves, valve guides, and install the new springs. They can also make sure the heads aren't warped...