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Topic: cylinder heads
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Page 1 of 1 of 2 replies
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December 04, 2006 at
08:35:14 PM
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06/04/2006
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15
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Which heads would be better to build, 487x or 601?
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December 04, 2006 at
09:35:58 PM
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Joined:
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07/29/2005
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36
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What are you building? Factory stock engine? Niether one 487 is 75cc chamber, not sure what 601 head is. Where you race?
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December 05, 2006 at
07:07:34 AM
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Joined:
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06/04/2006
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Posts:
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15
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lawton factory stock. the 601 is a 305 head i think. it has a small chamber. i have a set of 461 heads but one cracked and i had it repaired and then in the 05 season the other one cracked and ruined the engine and havent raced since. i'd get it fixed but it was a bit costly and i dn't care to take the chance of it happening again. the 461s are 202/150 with screw studs and guide plates and the others are stock.
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