Chevy Small block V8
WATER PUMPS, PULLEYS & ACCESSORY DRIVE SYSTEMS
Water Pump Pulleys
D. 3770245
Water Pump Pulley
• Fits short-leg water pumps with 5/8" shaft and small hub
• Use with crankshaft pulley P/N 3858533 and belt P/N 9433722 for captured fan belt system without idler or alternator
• Pulley is 7-1/8" diameter and 2.77" deep
Must be modified to fit water pump with 3/4" shaft.
E. 3942992
Water Pump Pulley
• Fits 1971-and-newer and short-leg water pumps with large hubs
Must be modified to fit water pump with 3/4" shaft. F. 3720616
Water Pump Pulley Reinforcement
• Increases stiffness of water pump pulley
• Use with pulley P/N 3770245 (see above) Water Pumps & Components
G. 88894341
Water Pump, Long-style
• Late-style cast iron pump with long mounting legs, reinforced snout and 3/4" diameter shaft
• End of shaft is reduced to 5/8" diameter
• Use with 350 HO, 383 and ZZ4 engines H. 14011012
Aluminum Water Pump, Short-style
• Saves weight over comparable iron pump
• Casting has short-style mounting legs used on pre-1982 Corvettes
• Pump has reinforced snout and a large hub with dual bolt patterns Note:
Pump housing has a boss which can be drilled and tapped for a cam stop. Can be used with the ZZ4 engine with composite front timing cover by exchanging the bolts that hold the rear sheet metal plate to the pump with pan-head bolts P/N 14010976 or equivalent aftermarket bolts.
I. 12495826
Aluminum Water Pump, Long-style
• Lightweight pump similar to the one used on the ZZ430 crate engine
• Can be used on late-style engines
Will not fit LT1 or LT4 engines. J. 12497986
Aluminum Water Pump, Long-style Serpentine
• Reverse-rotation pump
• Use with late-style engines with a serpentine belt system, including 90 V-6
Will not fit LT1 or LT4 engines. 25534390
R0X Water Pump Housing with Cassette (not shown)
• Housing bolts directly to the block
• Block openings are spread to 9.40"
• Standard front inlet and outlet openings
• Includes Water Pump Cassette P/N 25534391
25534391
R0X Water Pump Cassette (not shown)
• Designed for efficient operation
• Easy serviceability
• Refined impeller design and tolerances to improve flow | 
