XB4 B Block
Standard Wide
$22.00
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XB4 B Block
$22.00
Replacement Wide B Block that comes standard on the ’25 & ’26 XB4, and a proven upgrade for the ’24 XB4 when combined with a Wide-style A Block from either us or XRAY.
Machined in-house from US-sourced 7075-T651 aluminum, these blocks are built to take abuse and keep your geometry intact—run after run.