336 781 Big Block Chevy Heads, These 1969 BB Chevy heads 781 Oval port BB Chevy fully ported set of Oval port 781 heads and intake, erson billet 1. I was thinking of putting them on my 402. My motor came with a set of heads #353049 from 1973. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Can anyone tell me if the 781 Heads are any good. The bore of the 396 was so tiny it had to be notched to clear the valve from hitting the block. I rotated it as I slid it all the way to the thrust Check out this selection of performance big block cylinder heads to complete your build. 880 Exhaust . The heads have not been cut yet for the bigger Hot tank, small dome hypers, or possibly forged pistons, recondition rods, new ARP bolts, balance, etc, new steel crank (no stroker), deck block, line hone. 95 delivery Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335 Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335 Big Block Chevy Cylinder head, Aluminum, 335cc Review GM Valves. One exhaust stud is broke off but enough is sticking out to Cylinder Head Casting Numbers These head castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads These are a nice set of used 781 bigblock Chevrolet open chamber oval port heads.
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