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#282184208
COMP Cams 18-420-8 Magnum Hyd. Roller Camshaft, Chevy 4.3 V6
270/276
$577.95
/each
Factory Shipped
Quantity
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Key Specs
| Camshaft Type | Hydraulic Roller Tappet |
| RPM Range | 1800-5000 |
| Intake Duration (.050" Lift) | 215 |
| Exhaust Duration (.050" Lift) | 215 |
| Lobe Separation | 110 ° |
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COMP Cams 18-420-8 Details
GM 4.3L / 262 c.i. 90° V6 1985-2014. For '85-'87 GM 4.3L/262 cid 90° V6 Engines Originally Equipped w/ Flat Tappet Cam - Mild Street Performance, Slightly Noticeable Lope At Idle, Works w/ Stock Converter, Aftermarket Intake, Headers & 3.40-4.10 Gears Suggested, For Carbureted Engines. Magnum. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.
- Great high RPM power
- Easy on valve train parts
- Can be used with mild ratio rocker arms & traditional performance valve springs
- Best with aftermarket converter & 9.5:1+ compression
Guides & Documents
CARB Warning
For race/ off road use only
CARB Warning
For race/ off road use only
COMP Cams 18-420-8 Specifications
COMP Cams 18-420-8 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 18-420-8 |
| Brand | COMP Cams |
| Camshaft Type | Hydraulic Roller Tappet |
| RPM Range | 1800-5000 |
| Intake Duration (.050" Lift) | 215 |
| Exhaust Duration (.050" Lift) | 215 |
| Lobe Separation | 110 ° |
| GENERAL | |
| Intake Valve Lift w/ Rocker Arm Ratio | 0.500" |
| Exhaust Valve Lift w/ Rocker Arm Ratio | 0.500" |
| Intake Duration | 270 |
| Exhaust Duration | 270 |
| Sold in Quantity | Each |
| Grind Number | 270HR |
| GTIN Code | 036584780670 |
| External Ignition Box Required | No |
| Valve Springs Required | Yes |
Ratings & Reviews
Ratings & Reviews
Questions & Answers
Questions & Answers
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Fitment
Fitment
1985-1986 Chevy Astro
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy C10
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy C20
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy Caprice
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy El Camino
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy G10
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy G20
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy G30
Gen 1 LB1 90-Degree Chevy
1985 Chevy Impala
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy K10
Gen 1 LB1 90-Degree Chevy
1985 Chevy K20
Gen 1 LB1 90-Degree Chevy
1985-1986 Chevy Monte Carlo
Gen 1 LB1 90-Degree Chevy
1985-1986 GMC C1500
Gen 1 LB1 90-Degree Chevy
1985-1986 GMC C2500
Gen 1 LB1 90-Degree Chevy
1985-1986 GMC K1500
Gen 1 LB1 90-Degree Chevy
1985 GMC K2500
Gen 1 LB1 90-Degree Chevy
1985-1986 GMC Safari
Gen 1 LB1 90-Degree Chevy
