Summit Racing™ Pro Hemi Automotive Camshafts SUM-5742

Name: Summit Racing™ Pro Hemi Automotive Camshafts
Brand: Summit Racing
SKU: SUM-5742
Price: 429.99 USD
Availability: InStock
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Part Number: SUM-5742

$429.99

Summit Racing™ Pro Hemi Automotive Camshafts

Pro Hemi 238 Long-runner Cam, MDS and VVT Delete, 238/248 Duration @.050, 116.5 LSA + 3.5 adv, .625/.625 Lift, Valve Reliefs Required, 3700-7200 Range
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Summit Racing™ Pro Hemi Automotive Camshafts SUM-5742

SUM-5742

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Part Number: SUM-5742

Estimated Ship Date: Today

$429.99

Overview

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Overview

Brand:

Summit Racing

Manufacturer's Part Number:

SUM-5742

Part Type:

Camshafts

Product Line:

Summit Racing™ Pro Hemi Automotive Camshafts

Summit Racing Part Number:

SUM-5742

Item Number:

7494328

UPC:

190861282438

Cam Style:

Hydraulic roller, OE roller

Camshaft Use:

Racing

Camshaft Manufacturers Description:

Pro Hemi 238 Long-runner is designed for drag racing. It's designed for Top-end power with manual transmissions. Serious Lope. VVT Delete, On the edge of requiring valve reliefs. Headers and free-flowing exhaust recommended.

Basic Operating RPM Range:

3,700-7,200

Intake Duration at 050 inch Lift:

238

Exhaust Duration at 050 inch Lift:

248

Duration at 050 inch Lift:

238 int./248 exh.

Advertised Intake Duration:

289

Advertised Exhaust Duration:

299

Advertised Duration:

289 int./299 exh.

Intake Valve Lift with Factory Rocker Arm Ratio:

0.625 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio:

0.625 in.

Valve Lift with Factory Rocker Arm Ratio:

0.625 int./0.625 exh.

Lobe Separation (degrees):

116.5

Camshaft Gear Attachment:

1-bolt

Remanufactured:

Computer-Controlled Compatible:

Yes

Valve Springs Required:

Yes

Quantity:

Sold individually.

Notes:

2009+, MDS and VVT Delete, Pistons with bigger ralve reliefs required. For best results, give your tuner your cam card. 6 I/O, 52 I/C, 64 E/O, 4 E/C, 113 ICL, 120 ECL. Common Springs for Eagle Heads: SUM-174014BP shimmed to 1.900 Installed Height. Apache heads: SUM-174016BP-16 with 2.050 Installed height. Always use a feeler gauge to cofirm .030+ out of coil bind at max lift due to rocker ratio inconsistencies.

Summit Racing™ Pro Hemi Automotive Camshafts

Summit Racing™ Pro Hemi automotive camshafts are easy on the valvetrain and stable at high rpms. They work well with superchargers and nitrous, and will require springs, a tune, phaser limiter, and an MDS (multi-displacement system) delete. The smaller cams in this group have a noticeable lope and good power across the range, while the larger cams have a serious lope with strong top-end. Choose the one that best fits your purpose.

Notes:

* Pro Hemi automotive Stage 1 has a noticeable lope and works great in 5.7L as a daily driver. It makes good power through the range, and a tune and phaser limiter are required. A free flowing aftermarket exhaust is recommended.

* Pro Hemi automotive Stage 2 has a mild lope and works great in a daily driver. It makes good power through the range, and a tune and phaser limiter are required. A free flowing aftermarket exhaust is recommended.

* Pro Hemi automotive Stage 3 has a steady lope and is about the biggest cam to used in a daily driver. It makes great midrange and has good top end. It works with a factory converter, but a tune and phaser limiter are required, and free flowing aftermarket exhaust is recommended.

* Pro Hemi automotive Stage 4 has a strong lope and works good in weekend hot rods. It makes great midrange and has very good top end. It is the biggest cam we recommend with a factory converter, and a tune and phaser limiter is required. A free flowing aftermarket exhaust is also recommended.

* Pro Hemi automotive Stage 5 (or Stage 4 supercharged) camshafts provide a serious lope, great power in the mid-range, and a strong top-end. These cams require a tune, phaser limiter, an MDS (multi-displacement system) delete, and valve springs capable of .625 lift. We recommend a free flowing aftermarket exhaust and a 2800-3000 converter. Careful attention to piston-to-valve clearance is required. Fly cutting is generally not necessary.

* Pro Hemi automotive Stage 6 (or Stage 5 supercharged) camshafts achieve the top stages in each of these groups, providing a serious lope, great power in the mid-range, and a strong top-end. Each of these special cams require a tune, a phaser limiter, an MDS (multi-displacement system) delete, and valve springs capable of .625 lift. We recommend a free flowing aftermarket exhaust and a 3000-3200 converter. Careful attention to piston-to-valve clearance is required. Fly cutting is generally not necessary.