Nitrous HP 236/248 Hydraulic Roller Cam for Chevrolet Small Block

In stock
SKU
12-419-8
$522.95
  • For Retro-Fit (Link Bar) Hydraulic Roller Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2

  • 175+ nitrous system, 2500+ Stall w/ lower gears & headers

  • Nitrous HP™ -Wider lobe separation & added exhaust duration from base XE series help shift the power to higher RPM to allow use in nitrous applications • Early exhaust opening helps scavenge the extra spent gasses from nitrous or forced induction • Better time slips for nitrous passes at the strip

  • Warning: Camshaft Optimized for use with a Melanized or Nitrided distributor gear. Not compatible with cast or steel gears without similar surface treatments. Failure to utilize the proper distributor gear will void all warranties and/or return policies.


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 came with flat tappet lifters in roller lifter style blocks. If your block has '87+ OEM-style roller cam provisions but does not have roller components fitted, COMP Hyd. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased. As well as a '87+ OE-Style COMP Hyd. Roller Cam and '87+ OE-Style COMP Roller Lifters. Pre-'87 blocks require Retro-Fit Link Bar Roller Lifters.

Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range: 2,400-6,500
Grind Number: NX288HR
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: Nitrous HP
Usage: Street/Strip
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 288
Advertised Exhaust Duration: 315
Intake Duration at .050 Inch Lift: 236
Exhaust Duration at .050 Inch Lift: 248
Intake Valve Lift: 0.52
Exhaust Valve Lift: 0.54
Lobe Separation: 113
Exhaust Close ATDC: 39
Intake Open BTDC: 36
Exhaust Open BBDC: 96
Intake Close ABDC: 72
Camshaft Gear Attachment: 3-Bolt
Note Description
1010
4646
Component Part Number
Break-In Lube: 159
CL-Kit Upgrade: CL12-419-8
Distributor Gears: 12200
K-Kit Upgrade: K12-419-8
Lifter Kit: 15853-16  /   853-16
Push Rods: 7809-16
Rocker Arms: 1412-16
SK-Kit Upgrade: SK12-419-8
Steel Retainers: 740-16  /   795-16
Timing Set: 2100  /   7100
Valve Locks: 611-16  /   614-16
Valve Seals: 503-16
Valve Springs: 986-16  /   26986-16