Description
Mercruiser Small block heat exchanger for chevy engines up to 1982
with log style exhaust manifolds.
Front mounted,
Cools engine block and manifolds.
Heat Exchanger 74643 Mercruiser
Original price was: $1,989.00.$99.00Current price is: $99.00.
![Tip Top Teak Wood Oil Sealer – Quart [TS 1001]](https://www.apartship.com/wp-content/uploads/2025/4/1745803555/tip-top-teak-wood-oil-sealer-quart-ts-1001-1745803559.webp)
![Hydro Glow CORD50 50′ Extension Cord f/SF Series [CORD50]](https://www.apartship.com/wp-content/uploads/2025/4/1745803555/hydro-glow-cord50-50-extension-cord-f-sf-series-cord50-1745803558.webp)
![Sudbury Aqua Fresh – 8 Pack Box [830]](https://www.apartship.com/wp-content/uploads/2025/4/1745803555/sudbury-aqua-fresh-8-pack-box-830-1745803559.webp)
![Sudbury Elastomeric Marine Sealant – 10oz Cartridge – Clear [301]](https://www.apartship.com/wp-content/uploads/2025/4/1745803666/sudbury-elastomeric-marine-sealant-10oz-cartridge-clear-301-1745803670.webp)