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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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Special Order Cylinder Heads For 4 3/8" Bore Engines

 
$1,759.95
SKU:
90-1247
Qty:
 
Dealer Only Item

 
 
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Description
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Instructions

The S&S® B2 cylinder heads were originally developed for the now legendary S&S Tribute 145 engines. They have been used in a number of other applications on the race track and on the street. B2 cylinder heads for 4 3/8" bore engines have a slightly different combustion chamber, and a different mounting bolt pattern than the B2 cylinder heads for 4 1/8" bore engines.

B2 head kits come with S&S .660" lift valve springs which is adequate for most high performance street applications. However, S&S .720" lift springs can be substituted if higher lift is required. Kits do not include gaskets, hardware, or intake and exhaust flanges. These parts must be purchased separately.

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