S&S 132”/136” BIG BORE KIT
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S&S 4.320" Cylinders: Ductile iron liners, updated fin profile, texture black with machined highlights. Stock bolt pattern. No case mods required.
Forged Pistons: Engineered for high-compression durability.
Cometic MLS Head and Base Gaskets: Multi-layer steel for reliable sealing in high-performance applications.
Ring gaps pre-set by us on a precision diamond ring filer. Bolt them in and go. No hours at the bench with a file and feeler gauge.
Proudly Made in the USA.
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For HD M8 Oil Cooled and Twin Cooled Models.
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Customer's OEM Cylinders Resleeved/Bored to 4.500" (Engine Case Modification Required)
Forged CP Pistons and Rings (Pre-Set Ring Gaps)
Cometic Multi-Layer Steel (MLS) Head and Base Gaskets
Optional Ward CNC Ported Heads (At Additional Cost)
Optional Ward Performance Camshaft (At Additional Cost)
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For HD M8 Oil Cooled and Twin Cooled Models.
Starting at $1.885.00
WARD 143” BIG BORE KIT
Starting at $2,200.80
M8 143” CUSTOM CP PISTON KIT
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Forged CP-Carrillo Pistons: Custom Ward Performance spec, 0.0cc dome, 4.500" bore.
Ring Pack: .043" steel gas nitrided top ring, .043" steel Napier backcut 2nd ring (THG), 3.0mm low tension oil ring
Wrist Pins: .927" × 2.500", .180" wall, 5100 chrome moly, chamfered for wire locks
Wire Locks: .927" × .073" circlips
Calico CT3 Coated Skirts: Applied by CP for reduced friction and scuff resistance
Vertical Gas Ports: Machined by CP
Ring gaps pre-set by us on a precision diamond ring filer. Bolt them in and go. No hours at the bench with a file and feeler gauge.
Proudly Made in the USA.
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For HD M8 Oil Cooled and Twin Cooled Models.
Starting at $975.00