Gas Cap and Head sets will be etched together for a limited time. Buy a Phathead cylinder head kit and gas cap, select custom etch and we will etch both the cap and head. Call (734) 648-0103, email, message or chat. Free shipping orders $60+. Everything on the site is in stock.

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PhatheadRacing

Honda CR500 compression release chambers

Chamber selection H50 - 69.6cc Stock compression H51 - 66.2cc (95+ octane) H52 - 62.4cc (100+ octane) H53 - 52.5cc (mod only)

Product variants

$80.00 USD

$80.00 USD

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Quantity

Chamber selection:

H50 - 69.6cc Stock compression
H51 - 66.2cc (95+ octane)
H52 - 62.4cc (100+ octane)
H53 - 52.5cc (mod only)