Thumpr Hydraulic Flat Tappet Camshaft <br> 67-96 Big Block Chevy 396-454 V8

Description:

Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle. BBC 1965-66 396 c.i.d. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us and we will assist you with placing an order.

Features:

Camshaft Series: Thumpr

Lobe Separation: 107 DD

Intake Valve Lift: 0.522 IN

Exhaust Valve Lift: 0.507 IN

Lifters Included: No

Valve Springs Required: Yes

Assembly Lubricant Included: Yes

Camshaft Gear Attachment: 3-Bolt

Camshaft Material: Cast Iron

Cam, Lifter and Gear Drive Upgrade: GK11-602-4

K-Kit Upgrade: K11-602-4

Usage: Street/Strip

Lifter Type: Hydraulic Flat Tappet

Cam and Lifter Kit Upgrade: CL11-602-4

Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

Cam Type: Hydraulic Flat Tappet

Grind Number: 295TH7

Grind Number: 295TH7

Basic Operating RPM Range: 2,300-6,200

Intake Duration at .050 Inch Lift: 243 DD

Exhaust Duration at .050 inch Lift: 257 DD

Advertised Intake Duration: 295 DD

Advertised Exhaust Duration: 313 DD

Package Includes:

Engine Camshaft