Thread: Greetings from Salt Flat, Texas

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Brie----another thing about the 292 Y blocks------the heavier duty trucks---like maybe 2 ton---had 7/16 sodium filled exhaust stems and were quite heavy so don't plan on any sort of high rpm if your heads have them---you can change guides and stem sizes tho and if you mill any off the heads you need to do 150% from the manifold surface of the head to maintain alignment---.060 from deck = .090 from intake surface

Originally Posted by jerry clayton

Brie----another thing about the 292 Y blocks------the heavier duty trucks---like maybe 2 ton---had 7/16 sodium filled exhaust stems and were quite heavy so don't plan on any sort of high rpm if your heads have them---you can change guides and stem sizes tho and if you mill any off the heads you need to do 150% from the manifold surface of the head to maintain alignment---.060 from deck = .090 from intake surface

THANKS, that's a big help.