Stuff - FOR SALE
Casting # 10239906 ('96-up, Vortec 5700 L31 Iron Head).
64cc chambers, 170cc runners
Valves are 1.94" intake / 1.50" exhaust
Only got the one head. Ideal spare/stock replacement or good alternative to aftermarket stuff. If you know SBC heads, you'll know that the Vortec outflows even...