Best Automotive Replacement Short Engine Blocks in 2026
Daisy
Last Updated: Jul 18, 2026
Daisy
Last Updated: Jul 18, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| KIPA2007 | 9.88 | ✅ | ✅ | ✅ |
KIPA Top-grade crankshaft pulley is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value
Specification: Pulley Diameter is 6 9/16", Pulley is 2" Tall, Bolt Pattern is 2 3/4", Center Hole is 1 1/8", Machined From Billet Aluminium, These Feature deep grooves to prevent belts from slipping. This is a Triple groove pulley designed for your Small Block Chevy with a Short Water Pump. This has a 6.6" Diameter.
Fitment: This crankshaft pulley Fits all SB Chevy Engines when using a short water pump SWP. This crankshaft pulley Fits SB Chevy 265 283 305 327 350 383 400 using a short water pump SWP.
It connects to various engine accessory drive components by a belt drive system and help ensure that components receive power from the rotating crankshaft to perform their vital functions.
This product is distinguished by total quality assurance, They are made from high-strength materials using advanced manufacturing techniques to provide outstanding performance and reliability. Durable and highly resistant to wear, these parts are proven to provide trouble-free service for years
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CVF Racing | 8.68 | ❌ | ❌ | ❌ |
Chevy Big Block Crankshaf Pulley - SWP, V-belt (396-427-454)
Made in the USA from 6061-T6 Billet Aluminum
Designed for engines with Short Water Pump
3 Grooves, 5.4" Diameter, 2.0" Overall Length; 3 Bolt Pattern
Give Your Engine the Strong American Made Pulleys That It Deserves!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Southwest Speed ✅ | 9.63 | ❌ | ❌ | ❌ |
Brand New Southwest Speed Polished Billet Aluminum Crankshaft Pulley with 2 V-Belt Grooves that fits Big Block Chevy's with Short Water Pumps (SWS Part # 410-5912)
Southwest Speed crankshaft pulleys are CNC machined from forged 6061-T6 aluminum for the ultimate in strength and balance > Designed for use with v-groove style belts on Chevy engines, each pulley is polished to a mirror finish
Features: > Billet Aluminum > Polished, mirror finish > 2 V-Belt Grooves > For Big Block Chevy's with Short water pumps > 6.455" O.D. > 3 Bolt X 3 1/4" Bolt Circle, Bolt Holes are 2 3/4" Center to Center from each other > Center Line of Belt is .464" from the front of the balancer > Total thickness front of balancer to end of pulley is .760" > Balancer Register is 2.275" O.D. > Designed to work with 7/16" wide belts, but 15/32" or 1/2" belts will also work
WHY USE A BILLET PULLEY?: > The benefit of a billet aluminum pulley over a cast pulley is equal density > With a cast pulley, the aluminum is poured into a mold and then allowed to cool > This process can create variations in density throughout the pulley > Dense areas are heavier than the more porous areas causing the pulley to vibrate at high RPM
Southwest Speed pulleys are equally dense throughout; equal weight translates to a true and balanced pulley drive system > *** NOTE: This listing is for the pulley only and does not include mounting hardware ***
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Assault Racing Products | 1 |
| Cvf Racing | 1 |
| Kipa | 1 |
| Southwest Speed | 1 |
We've carried out a comprehensive analysis of 148 reviews on automotive replacement short engine blocks, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select automotive replacement short engine blocks priced around $64.25, with top brands including cfr performance, southwest speed, racing power, gooacc, moly magnolia, assault racing products, acdelco and cvf racing and kipa
Our team of expert editors reviewed these high-quality items and handpicked the top 4 automotive replacement short engine blocks for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include unbeatablesale, inc, southwest speed ✅, amazon.com, huanheng and cvf racing and kipa2007 .
We are dedicated to assisting our users in finding the right pulleys Products based on their needs, saving them considerable time when choosing which automotive replacement short engine blocks to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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