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COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts 42-602-11 Camshafts, Roller, Advertised Duration 299/319, Lift 0.552/0.537, Very Rough Idle, Needs 9.5:1 Compression, Olds V8, Each

SKU: CCA42-602-11

Camshafts

COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts 42-602-11 Camshafts, Roller, Advertised Duration 299/319, Lift 0.552/0.537, Very Rough Idle, Needs 9.5:1 Compression, Olds V8, Each

SKU: CCA42-602-11

Camshafts
A$1,401.24
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.
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Description

Big Mutha' Thumpr 243/257 Hydraulic Roller Cam

Application Summary

Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8

Part Type

Engine Camshaft

Data: v4.2 - Upd: 2026-10-16 13:06:21

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
42-602-11
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts
Product Attributes - UPC
036584312987
Product Attributes - Cam Style
Hydraulic roller, Retro-fit
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Camshaft Manufacturers Description
Needs 9.5:1 compression, 2,800 and up stall, intake, gears, and headers. Has a very rough idle.
Product Attributes - Basic Operating RPM Range
2,300-6,100
Product Attributes - Intake Duration at 050 inch Lift
243
Product Attributes - Exhaust Duration at 050 inch Lift
257
Product Attributes - Duration at 050 inch Lift
243 int./257 exh.
Product Attributes - Advertised Intake Duration
299
Product Attributes - Advertised Exhaust Duration
319
Product Attributes - Advertised Duration
299 int./319 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.552 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.537 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.552 int./0.537 exh.
Product Attributes - Lobe Separation (degrees)
107
Product Attributes - Camshaft Gear Attachment
1-bolt
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca42-602-11
SFX Item ID 4776927
Supplier Item Code 4776927
Manufacturer SKU 42-602-11
Manufacturer UPC N/A
Alternative References V8

Compatibility

Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8

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