Mast LS Cast Valve Cover Kit - Pair

Marsoni

M251S

$212.50

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

Mast LS Cast Valve Cover Kit - PairMast Motorsports sand cast valve covers are made right here in the USA. They fit center bolt LS cylinder heads and clear most shaft mount rocker arms. Machined for additional rocker clearances and additional venting. Includes: 1 Pair Valve Covers Valve Cover Gaskets Mounting Bolts and Grommets Oil Fill Cap Pipe Plug 12 ORB fittings Options Coil mount kit

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We offer a 30-day return/exchange service after receiving.
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This works really well! I used it several times and really saw a difference. Unfortunately I had a root canal done and the following day I decided to whiten and I thought I was going to die! I didn’t know my front tooth was going to be that sensitive from the tooth canal. That was my fault and only telling this story as a warning! Do not use this after dental work unless your dentist says ok! Otherwise it works amazingly!

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Reviewed in the United States on May 2, 2026