318 Poly heads and stuff

polyjohn said
The pushrod angles are much nicer in the Poly/LA block with poly heads.
Once you fit an LA head the angles are quite odd indeed.

Only rectified with R5 blocks I believe 59 degrees and 49 degrees?

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The race blocks have had variations that addressed the lifter angle from 59 to 48. The iron block, they also came in 3 deck heights and various bore sizes.