RACING HEAD SERVICE
LS Aluminum Block - 4.120 Bore 9.240 D/H
SKU: RHS54903U
$7,664.99
We suggest checking fitment carefully — product data mentions: LS Aluminum Block - 4.120 Bore 9.240 D/H · Engine - Bare Block - 4.125 in Bore - 9.250 Deck - Standard Main - 6-Bolt Mai. Always confirm before you buy.
Secure checkout with Cunningham Customs LLC. Real people handle your order. Create an account to save garage, favorites, and addresses for next time.
Engine - Bare Block - 4.125 in Bore - 9.250 Deck - Standard Main - 6-Bolt Mains - 1-Piece Seal - 6-Bolt Head - Aluminum - Natural - GM LS-Series - Each Notes:
Questions about fitment or install? Ask Grok anytime, or Call Us at +1 (424) 447-8470. We're here to get the right part on your build.
Comments & builder notes
Share fitment tips, install notes, or questions. Customers, the shop, and Grok can all chime in. New comments notify the Cunningham Customs team for review.