Howards Cams Boost Hydraulic Roller Camshafts 189275-16

Name: Howards Cams Boost Hydraulic Roller Camshafts
Brand: Howards Cams
SKU: HRS-189275-16
Price: 471.99 USD
Availability: OutOfStock
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Part Number: HRS-189275-16

$471.99

Howards Cams Boost Hydraulic Roller Camshafts

Camshaft, Boost, OE Hydraulic Roller Tappet, Advertised Duration 287/285, Lift .544/.540, Chevrolet, Small Block, Each
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Howards Cams Boost Hydraulic Roller Camshafts 189275-16

HRS-189275-16

Not Yet Reviewed

Part Number: HRS-189275-16

Estimated Ship Date: Dec 31, 2026

$471.99

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Overview

Applications

Q&A

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Overview

Brand:

Howards Cams

Manufacturer's Part Number:

189275-16

Part Type:

Camshafts

Product Line:

Howards Cams Boost Hydraulic Roller Camshafts

Summit Racing Part Number:

HRS-189275-16

UPC:

840793150540

Cam Style:

Hydraulic roller, OE roller

Camshaft Use:

Street/Strip

Camshaft Manufacturers Description:

Centerline: 112, Turbo, Fair idle. Pro Street or Street/Strip. Needs 9.5:1 compression, 2800+ stall.

Basic Operating RPM Range:

2,400-6,200

Intake Duration at 050 inch Lift:

235

Exhaust Duration at 050 inch Lift:

233

Duration at 050 inch Lift:

235 int./233 exh.

Advertised Intake Duration:

287

Advertised Exhaust Duration:

285

Advertised Duration:

287 int./285 exh.

Intake Valve Lift with Factory Rocker Arm Ratio:

0.544 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio:

0.540 in.

Valve Lift with Factory Rocker Arm Ratio:

0.544 int./0.540 exh.

Lobe Separation (degrees):

116

Camshaft Gear Attachment:

3-bolt

Remanufactured:

Computer-Controlled Compatible:

Valve Springs Required:

Yes

Quantity:

Sold individually.

Howards Cams Boost Hydraulic Roller Camshafts

Howards Cams Boost hydraulic roller camshafts are available with various lifts and durations, and can provide different idles—including good, fair, rough, and lopey. They're ideal for competition and high performance builds featuring forced induction, but not intended for use with stock (OE) valve springs. Firing order, degrees of lobe separation, and intake centerline designs vary by application. Add over 70 years of race winning performance to your naturally aspirated build with the Howards Cams Boost hydraulic roller camshaft designed for your engine.

Notes:

* Compatible with stock (OE) rollers, depending on application
* Cathedral port head compatible, depending on application
* Custom programmer/tuning may be required, depending on application

Applications