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  • XS230-RACE H/L – SBC

    $1,049.00

    Dominate the field with our fully assembled XS230-Race H/L high performance SBC cylinder heads! These high flow AC4B castings feature 100% CNC ported intake/exhaust runners…

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  • XS271 – LS3

    $999.00

    Product Info Coming Soon! Bare cylinder heads. NO VALVE TRAIN INCLUDED    WARNING: Cancer and Reproductive Harm –  www.p65warnings.ca.gov   SOLD INDIVIDUALLY

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  • XS230 – SBC

    $849.00

    Gain an advantage over the competition with our XS230 high performance SBC cylinder heads! These high flow AC4B castings include 100% CNC ported intake/exhaust runners…

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  • XS205 – SBC

    $599.99

    Our high flowing “As-Cast” cylinder heads are made out of high quality AC4B aluminum alloy and feature a street performance 3-angle valve job, bronze valve…

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  • XS336 – BBC

    $549.00

    Our high flowing “As-Cast” cylinder heads are made out of high quality AC4B aluminum alloy and feature a street performance 3-angle valve job, bronze valve…

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  • XS356 – BBC

    $899.00

    Gain an advantage over the competition with our XS356 high performance BBC cylinder heads! These high flow AC4B castings include 100% CNC ported intake/exhaust runners…

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  • XS225 – LS1/LS2/LS6

    $549.00

    Product Info Coming Soon! Bare cylinder heads. NO VALVE TRAIN INCLUDED    WARNING: Cancer and Reproductive Harm –  www.p65warnings.ca.gov   SOLD INDIVIDUALLY

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  • XS257 – LS3

    $599.00

    Product Info Coming Soon! Bare cylinder heads. NO VALVE TRAIN INCLUDED    WARNING: Cancer and Reproductive Harm –  www.p65warnings.ca.gov   SOLD INDIVIDUALLY

    Add to cart