Features: Simulates the bore distortion of a torqued cylinder head during the honing, boring, and ring gapping process Proven to reduce blowby, reduce oil consumption, and increase reliability Essential for high performance engine builds Top bore edge radius makes it comfortable for ring gapping Included spacers duplicate cylinder head deck height to accurately reproduce block stresses Use with aftermarket head studs or OEM head bolts CNC machined from tempered and anodized aerospace grade aluminum Works with: EJ25 engines
Fitment Table
<div class="dynamic-checkout__content" id="dynamic-checkout-cart" data-shopify="dynamic-checkout-cart"> <shopify-accelerated-checkout-cart wallet-configs="[{"supports_subs":true,"supports_def_opts":false,"name":"shop_pay","wallet_params":{"shopId":84839039279,"merchantName":"Pro Speed Racing","personalized":true}},{"supports_subs":false,"supports_def_opts":false,"name":"paypal","wallet_params":{"shopId":84839039279,"countryCode":"AU","merchantName":"Pro Speed Racing","phoneRequired":true,"companyRequired":false,"shippingType":"shipping","shopifyPaymentsEnabled":true,"hasManagedSellingPlanState":null,"requiresBillingAgreement":false,"merchantId":"LXXML66B2BYR4","sdkUrl":"https://www.paypal.com/sdk/js?components=buttons\u0026commit=false\u0026currency=AUD\u0026locale=en_US\u0026client-id=AfUEYT7nO4BwZQERn9Vym5TbHAG08ptiKa9gm8OARBYgoqiAJIjllRjeIMI4g294KAH1JdTnkzubt1fr\u0026merchant-id=LXXML66B2BYR4\u0026intent=authorize"}}]" access-token="706ba983f15457e978c8a1c115b311ae" buyer-country="AU" buyer-locale="en" buyer-currency="AUD" shop-id="84839039279" cart-id="605b21f9af7b2bd3dc6a5d37daabd05b" enabled-flags="["ae0f5bf6"]" > <div class="wallet-button-wrapper"> <ul class='wallet-cart-grid wallet-cart-grid--skeleton' role="list" data-shopify-buttoncontainer="true"> <li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li> </ul> </div> </shopify-accelerated-checkout-cart> <small id="shopify-buyer-consent" class="hidden" aria-hidden="true" data-consent-type="subscription"> One or more of the items in your cart is a recurring or deferred purchase. By continuing, I agree to the <span id="shopify-subscription-policy-button">cancellation policy</span> and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. </small> </div>