Wiseco HD 1340 Shovelhead 9.51 (3537X-4730P4) Piston Kit

Wiseco HD 1340 Shovelhead 9.51 (3537X-4730P4) Piston Kit

Marsoni

M251S

$198.59

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco HD 1340 Shovelhead 9.51 (3537X-4730P4) Piston KitV Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine tuned its V Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all out race, Wiseco has the pistons for your V Twin build. This Part Fits: Year Make Model Submodel 1978 1984

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Great plugs and amazing value for the money. Easy to use and tighten and the screw cover works wonderfully. Even comes with a couple extra screws in case you lose one. The sound is better than what I had and I used 14 gauge wire. Plugs were perfect, not too tight at all. I could see having to push for new posts but they are snug and didn't take too much force to put in. 10/10

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Reviewed in the United States on December 27, 2025