# COMP Cams Camshaft CBVI 299Th R7 Thumper

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.

This Part Fits:

Year

Make

Model

Submodel

1996-1997,1999-2000

Chevrolet

C2500

Base

1996-1998

Chevrolet

C2500

Cheyenne

1999-2000

Chevrolet

C2500

LS

1996-1998

Chevrolet

C2500

Silverado

1998

Chevrolet

C2500

WT

1996-1999

Chevrolet

C2500 Suburban

Base

1996-1999

Chevrolet

C2500 Suburban

LS

1996-1997

Chevrolet

C2500 Suburban

LT

1996-1997,1999-2000

Chevrolet

C3500

Base

1996-1998

Chevrolet

C3500

Cheyenne

1999-2000

Chevrolet

C3500

LS

1996-1998

Chevrolet

C3500

Silverado

1996-2000

Chevrolet

Express 3500

Base

1996-2000

Chevrolet

Express 3500

LS

1996

Chevrolet

G30

Beauville

1996

Chevrolet

G30

Chevy Van

1996

Chevrolet

G30

Hi-Cube

1996

Chevrolet

G30

Sportvan

1996-1997,1999-2000

Chevrolet

K2500

Base

1996-1998

Chevrolet

K2500

Cheyenne

1999-2000

Chevrolet

K2500

LS

1996-1998

Chevrolet

K2500

Silverado

1998

Chevrolet

K2500

WT

1996-1999

Chevrolet

K2500 Suburban

Base

1996-1999

Chevrolet

K2500 Suburban

LS

1996-1997

Chevrolet

K2500 Suburban

LT

1996-1997,1999-2000

Chevrolet

K3500

Base

1996-1998

Chevrolet

K3500

Cheyenne

1999-2000

Chevrolet

K3500

LS

1996-1998

Chevrolet

K3500

Silverado

1996-1999

Chevrolet

P30

Base

1996-2000

GMC

C2500

Sierra SL

1996-2000

GMC

C2500

Sierra SLE

1996-2000

GMC

C2500

Sierra SLT

1996-1999

GMC

C2500 Suburban

Base

1996-1999

GMC

C2500 Suburban

SLE

1996-1999

GMC

C2500 Suburban

SLT

1996-2000

GMC

C3500

Sierra SL

1996-2000

GMC

C3500

Sierra SLE

1996-2000

GMC

C3500

Sierra SLT

1996

GMC

G3500

Magnavan

1996

GMC

G3500

Rally

1996

GMC

G3500

Rally Camper Special

1996

GMC

G3500

Rally STX

1996

GMC

G3500

Vandura

1996

GMC

G3500

Vandura Special

1996-2000

GMC

K2500

Sierra SL

1996-2000

GMC

K2500

Sierra SLE

1996-2000

GMC

K2500

Sierra SLT

1996-1999

GMC

K2500 Suburban

Base

1996-1999

GMC

K2500 Suburban

SLE

1996-1999

GMC

K2500 Suburban

SLT

1996-2000

GMC

K3500

Sierra SL

1996-2000

GMC

K3500

Sierra SLE

1996-2000

GMC

K3500

Sierra SLT

1996-1999

GMC

P3500

Base

1996-2000

GMC

Savana 3500

Base

1996-2000

GMC

Savana 3500

SLE

## Details

- **Price:** 758.96 CAD
- **Vendor:** COMP Cams
- **Type:** Camshafts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 758.96 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Primary
- Logo Image
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-camshaft-cbvi-299th-r7-thumper)
> Updated: 2026-06-26