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Supersedes All Previous Catalogs Catalog No ... - TradeMotion.com

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“A” ENGINE ALUMINUM<br />

RACE BLOCKS<br />

Designed and built for the serious Sprint Car and Dirt late model, this<br />

Mopar Performance “A” aluminum race block showcases the latest<br />

in technology. Knowing the racer’s concern for weight and overall<br />

strength, this block was engineered using finite element analysis<br />

to optimize the design for weight savings of over 25 lbs. from the<br />

previous version. The following features set the Mopar block ahead<br />

of the <strong>com</strong>petition:<br />

• 6-bolt head design for superior gasket sealing and reliability at<br />

higher <strong>com</strong>pression ratios (a 4-bolt head can be installed)<br />

• Full skirted “H” block design for the required strength and rigidity<br />

• Cross-bolted main caps for added strength and improved rigidity<br />

• Ductile iron dry cylinder liners<br />

• High-strength A1 studs, bolts, and attaching hardware<br />

• “A” engine high cam location for longer strokes and reduced windage<br />

• 50 mm roller bearing cam design for reduced friction<br />

(Requires bearing set P4876707)<br />

• 48° tappet angle for close to ideal valve train geometry<br />

• Approximate weight — 95 lbs. to 100 lbs.<br />

*P5007580 “A” Engine Aluminum Race Block —<br />

9.000" deck height, ribbed<br />

*P5007581 “A” Engine Aluminum Race Block —<br />

9.100" deck height, ribbed<br />

*P5007582 “A” Engine Aluminum Race Block —<br />

9.600" deck height, ribbed<br />

REPLACEMENT SLEEVES<br />

*P4532866 Replacement Sleeve — 4.209" OD, 3.990" ID,<br />

5.570" long (fits 9.00" blocks)<br />

*P4532865 Replacement Sleeve — 4.301" OD, 4.090" ID,<br />

5.545" long (fits 9.00" and 9.100" blocks)<br />

*P5249984 Replacement Sleeve — 4.301" OD, 4.090" ID,<br />

6.000" long (fits 9.560" blocks)<br />

NOTE: For <strong>com</strong>plete Engine Block listings, see the Race Block<br />

Application Chart on p. 56.<br />

NEW! BILLET SPRINT CAR CRANKSHAFT<br />

This lightweight 4340 billet steel sprint car crank features a 3.8" stroke,<br />

2.00" rod journals, 340 mains and a generic 6-bolt rear flange.<br />

*P5007903 Billet Sprint Car Crank — 3.8" stroke<br />

“A” ENGINE ALUMINUM SPRINT CAR<br />

GEAR DRIVE AND COVER ASSEMBLY<br />

Gear drive assembly for Sprint car applications for front mount oil and<br />

water pumps. Kit includes the following: crank drive gear, cam gear,<br />

idler gear, front cover, water pump drive hub and adapter, oil pump<br />

drive and adapter and mounting hardware.<br />

P5249988<br />

Aluminum Gear Drive Package<br />

RACE ROLLER UGL CAMSHAFTS<br />

The 48° tappet “R” blocks (R1, R2, R3, R4) and the 48° tappet aluminum<br />

blocks require special cams. These UGL (unground lobe) cams can be<br />

provided to grinders to enable them to grind their specific profiles to<br />

create a finished cam. Cannot be used in engine as is.<br />

*P5007134 Lightweight (hollow) UGL Cam for roller tappets —<br />

use with 50 mm roller bearings (P4876707)<br />

NOTE: For a detailed list of UGL Camshafts, see p. 57.<br />

“A” ENGINE CAMSHAFT BEARINGS<br />

Includes <strong>com</strong>plete engine set.<br />

P4876707<br />

“A” Engine Cam Bearings — 48°, 50 mm roller<br />

bearing application<br />

Steve Francis piloted one of the only Mopar entries in the premier<br />

Xtreme DirtCar Series to a solid fourth-place finish while <strong>com</strong>piling<br />

24 top-10 finishes. Francis also had success in several other late<br />

model dirt racing series in 2003.<br />

Photo: Mike Katterhenry<br />

10<br />

*<strong>No</strong>t legal for sale on pollution-controlled vehicles<br />

or vehicles registered for highway use.<br />

*<strong>No</strong>t legal for sale on pollution-controlled vehicles<br />

or vehicles registered for highway use.<br />

Go to mopar.<strong>com</strong> for <strong>com</strong>plete product listings.<br />

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