Questions about 340hp manifolds...

H22A4 said

autoxcuda

Do you need special bolts and nuts kit for the '69 to '70 340 manifolds or will 318 bolts and nuts work as well?


Also, is the heat shield necessary? Looking at the prices for the 340 heat shield, they should be made out of gold.

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On the driver side 340 manifolds there are two or three? special deep extended column nuts. About 2-3" deep. I don't think 318 manifolds take those.

Don't need the heat shield. But I think it would help keep the temps down on the plug boots a little. Not a issue with burnt boots without running the shield, just might get a little more life out of them (not $140 worth of life though).