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Forum: General Boating Discussion

09-07-2009, 11:00 AM

Replies: 9

HP500 heads on a MarkIV?

Views: 731

Posted By Young Performance

Maybe one out of 15-20 will work.(Gen VI head on...

Maybe one out of 15-20 will work.(Gen VI head on Mk IV block) The problem is that the head overlaps into the lifter valley. There is not enough material for the gasket to seal. The way to check it is...

Forum: General Boating Discussion

09-06-2009, 12:39 AM

Replies: 9

HP500 heads on a MarkIV?

Views: 731

Posted By Young Performance

If the hp500 heads are Gen V/VI, then no, they...

If the hp500 heads are Gen V/VI, then no, they will not bolt to a Mk IV block. You can put Mk IV style heads on a Gen V/VI block, but you can not put Gen V/VI heads on a Mk IV block.
Eddie

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