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Xtreme Marine 246/256 Hydraulic Flat Cam K-Kit for Chevrolet Small Block


Includes Cam, Lifters, Valve Springs, Retainers, Locks, Seals, & Timing Set

• For Hydraulic Flat Tappet Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2

• Jet Boat w/ A Impeller • 9.5:1 Compression • Needs Headers • Good for Bracket Racing & High Performance

• For Carb or Tunable Fuel Injection3

1: Cams for '55-'57 engines can be custom ordered. Please Call, Email, Twitter or Live Chat for details.

2: The '87+ Chevy Small Block received provisions for roller lifters. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks and boats came with flat tappet lifters in roller lifter style blocks. If a roller cam is desired and your block has OEM-style roller cam provisions. COMP Hyd. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased, as well as a '87+ OE-Style Hyd. Roller Cam and '87+ OE-Style Roller Lifters. Roller cam conversion in pre-'87 blocks requires Retro-Fit Hyd. Roller Cam and Retro-Fit Link Bar Lifters.

3: Many OEM EFI systems cannot be tuned to run well on certain low vacuum (high duration, low lsa) cams.

More Information
UPC 036584041542
Manufacturer COMP Cams®
Emissions Code
Engine Family Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range 2,500-6,500
Cam Type Hydraulic Flat Tappet
Camshaft Series Xtreme Marine
Camshaft Gear Attachment 3-Bolt
Usage Marine
California Proposition 65 WARNING: Cancer and Reproductive Harm
Advertised Intake Duration 290
Advertised Exhaust Duration 306
Intake Duration at .050 Inch Lift 246
Exhaust Duration at .050 Inch Lift 256
Intake Valve Lift 0.516
Exhaust Valve Lift 0.522
Lobe Separation 112
Lifter Style Hydraulic Flat Tappet