[seanrolandwood]

thank you all for the links and information sounds like the hardest part will be actually finding vortec heads lots out there claiming to be vortecs but going through the links theres only 2 castings #'s that are actually vortec maybe someone can answer this i was going through a site listing all sbc cylinder heads numbers there were 2 heads avaible with the "062 #'s one an L-31 with 1.94/1.5 64cc 1998 only and one 1.94/1.5 68cc heads how would i identify which was which without having to trust a stanger trying to sell me whatever what vehicles were equiped with the L-31 head???

casting # information from outintheshop.com