Page 422 - 2018 Master Catalog

BILLET STEEL AND ALUMINUM FLYWHEELS
Every RAM flywheel is dynamically balanced to within ½ ounce/inch of the factory specification.
RAM aluminum flywheels have a .250 inch thick steel friction insert to handle the heat generated
under extreme conditions, while allowing resurfacing without the need to replace the insert. All
RAM flywheels are manufactured from SFI certified materials in our South Carolina facility.
PART NO. ENGINE APPLICATION NOTES BAL. DIA. TEETH FITS BOLT PATTERNS WT. BOLTS
CHEVY - STEEL
1501 350/290HP Early 290 HP (2 Pc. Main Seal) INT 14.2 168 10.5”, 11” B&B, Diaph., 11” Long 33 575
350 11” Clutch Flywheel, RAMJET FI
1530 EXT 14.2 168 10.5”, 11” B&B, Diaph., 11” Long 33 575
383 Fastburn 11” Clutch
1550 LS1, 2, 6, 7 Flat Flywheel INT 14.2 168 Factory Metric, 11” Diaph 33 528
1523 400 1970-78 Chevy 400 (also 383 stroker) EXT --- 168 10.5” & 11” B&B, Diaph., 11” Long 33 ---
1521 454 1955-85 BBC (2 Pc. Main Seal) EXT --- 168 10.5” & 11” B&B, Diaph., 11” Long 33 ---
CHEVY - ALUMINUM
2501 350/290HP Early 290 HP (2 Pc. Main Seal) INT 14.2 168 10.5”, 11” B&B, Diaph., 11” Long 18 575
MOPAR - STEEL
6 Bolt Crank Pattern (Exc. 360) 575
1503 8 CYL INT 13.2 130 10.5” B&B, Diaph. 28
8 Bolt Crank Pattern (Exc. 360) 596
1583 318-440 1964-99 8 Bolt (Exc. 360) INT --- 130 10.5” (10.95”) B&B, Diaph 28 ---
FORD - STEEL
1540 4.6L 16V Late 4.6L (1 Pc. Main Seal) INT --- 164 10.5” Long Style; 10.5” & 11” Ford Diaph 28 ---
1545 4.6L 32V Late 4.6L 32V INT --- 164 10.5” Long Style; 10.5” & 11” Ford Diaph 28 ---
1527 351/5.8L 28 oz. Balance EXT 13.3 157 10.5” Ford Diaph. 24 575
1505 351/5.8L For 11” Clutch - 28 oz. Balance EXT 14.2 164 10.5”, 11” Long 33 575
1518 428 Big Block Early - 28 oz. Balance EXT 14.5 184 11”, 11.5”, 12” Long Style 35
FORD - ALUMINUM
2540 4.6L SOHC 1992-05 Ford 4.6L SOHC INT --- 164 10.5” Long Style; 10.5” & 11” Ford Diaph 14 ---

HYDRAULIC THROWOUT MISCELLANEOUS
BEARINGS CLUTCH PARTS
• Complete Adjustability
• Simple Installation with Most Aftermarket Clutches PART NO. DESCRIPTION
• Efficient Method of Setting Up Clutch Release
System 489 Throwout Bearing - Standard - 1.125”
492 Pressure Plate Studs - Hex Head - Steel - 3/8”-16
PART NO. DESCRIPTION 550 Pressure Plate Shim Kits - Steel - 3/8”
78125 GM Muncie, Saginaw, Borg Warner Transmissions
78125HD GM Muncie, Saginaw, Borg Warner Transmissions
78175 2005-08 Ford Mustang GT500 - T56/TR6060 Transmission
78505 Replacement O-Ring Kit (.068” dia. rings)

CLUTCH SETS
MODEL YEARS DESCRIPTION HDX POWERGRIP POWERGRIP HD SIZE/SPLINE

Chevy 1955-85 153 Tooth 88760HDX 98760 98760HD 10.5”, 1-1/8”-10
Chevy 1955-85 153 Tooth 88761HDX 98761 98761HD 10.5”, 1-1/8”-26
Chevy 1955-85 168 Tooth 88762HDX 98762 98762HD 11”, 1-1/8”-10
Chevy 1955-85 168 Tooth 88764HDX 98764 98764HD 11”, 1-1/8”-26
Chevy 1997-2013 LS1, 5.7L 88931HDX 98931 98931HD 11”, 1-1/8”-26
Ford SB 1965-78 164 Tooth, 28 oz. / Internal Balance 88502HDX 98502 98502HD 10.5” lever, 28 oz.
Ford 1996-00 Mustang 4.6L, All Exc. 26-Spline, 6-Bolt FW 88794HD 98794 98794HD 10.5”, 1-1/16”-10
Ford 1996-00 Mustang 4.6L, All w/ 26-Spline, 6-Bolt FW 88794HDT 98794T 98794HDT 10.5”, 1-1/8”-26
Ford 2005-10 Mustang 4.6L, All Exc. 26-Spline, 6-Bolt FW 88952HDX 98952 98952HD 11”, 1-1/16”-10
Chrysler SB 1966-78 130 Tooth, 6-Bolt 88766HDX 98766 98766HD 10.5” lever, 23 spline
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