Howards Cams Big Daddy Rattler Camshafts 128101-09

Name: Howards Cams Big Daddy Rattler Camshafts
Brand: Howards Cams
SKU: HRS-128101-09
Price: 249.99 USD
Availability: InStock
Rating: 0 (0 reviews)

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Part Number: HRS-128101-09

$249.99

Howards Cams Big Daddy Rattler Camshafts

Camshaft, Big Daddy Rattler, Hydraulic Flat Tappet, Advertised Duration 297/305, Lift 0.545 int./0.561 exh., Chevy, Big Block, Mark IV, Each
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Howards Cams Big Daddy Rattler Camshafts 128101-09

HRS-128101-09

Not Yet Reviewed

Part Number: HRS-128101-09

Estimated Ship Date: Oct 22, 2026

$249.99

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Overview

Applications

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Overview

Brand:

Howards Cams

Manufacturer's Part Number:

128101-09

Part Type:

Camshafts

Product Line:

Howards Cams Big Daddy Rattler Camshafts

Summit Racing Part Number:

HRS-128101-09

UPC:

840793133208

Cam Style:

Hydraulic flat tappet

Camshaft Use:

Street/Strip

Camshaft Manufacturers Description:

Rough idle, Pro street or street/strip, Needs 9.5:1+ compression & 2800+ stall converter.

Basic Operating RPM Range:

2,400-6,200

Intake Duration at 050 inch Lift:

243

Exhaust Duration at 050 inch Lift:

251

Duration at 050 inch Lift:

243 int./251 exh.

Advertised Intake Duration:

297

Advertised Exhaust Duration:

305

Advertised Duration:

297 int./305 exh.

Intake Valve Lift with Factory Rocker Arm Ratio:

0.545 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio:

0.561 in.

Valve Lift with Factory Rocker Arm Ratio:

0.545 int./0.561 exh.

Lobe Separation (degrees):

109

Camshaft Gear Attachment:

3-bolt

Remanufactured:

Computer-Controlled Compatible:

Valve Springs Required:

Yes

Quantity:

Sold individually.

Howards Cams Big Daddy Rattler Camshafts

Howards Cams Big Daddy Rattler camshafts are street performance cams designed to give a nice aggressive-sounding idle without sacrificing throttle response and horsepower gains. Big Daddy camshafts are top dog in the Rattler lineup, and as such they offer a rough idle, and are best used in Pro Street or street/strip applications. Compression needs to be at least 9.5:1, the torque converter needs to stall 2,800 rpm or higher, and a performance intake manifold, steeper gears, and free-flowing exhaust are required to take advantage of the camshaft's capabilities.

Applications