This part ships for FREE via UPS Truck Freight shipping!
LMR will be closed for the Memorial Day holiday - Monday, May 30th.
The Ford Racing FRPP M-6009-331F BOSS 331 Short Block starts off with the hydraulic roller camshaft compatible, 8.2" deck height, Boss 4-bolt main block, M-6010-BOSS302. It is then stuffed with Mahle forged aluminum 4.125" bore pistons with valve reliefs for Z304, N351, GT-40 and other inline valve Windsor cylinder heads with a 7cc effective dome volume. The pistons are attached to Eagle Forged steel H beam connecting rods with floating pin & swung by an Eagle 3.100" stroke forged steel crank.
The rotating assembly is neutrally balanced. Use of a 50oz or 28oz balancer or flywheel will cause vibrations & engine failure! You must use a neutral balance, or zero balance, balancer & flywheel.
Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads, Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads. Recommended cylinder head fasteners M-6065-BOSS head bolts, M-6014-BOSS studs, or M-6014-Z304 studs, depending on application.
Assembled and ready for your heads, cam and timing chain set
Ford Performance - Mustang Ford Racing Parts
Ford Performance Racing Parts is the leader in performance parts and accessories for Mustang and Ford Lightning.
LatemodelRestoration.com is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at LatemodelRestoration.com. If you want the best for your Mustang or SVT Ligtning, look no further than Ford Racing Performance Parts!
Products by Vehicle
Email Me When It's Back In Stock!
Email Me When It Arrives!
Upload a Picture
Upload your own picture of the Mustang Ford Racing 331ci Boss Short Block (79-95)
Please make sure to hold your device horizontally (like a camera) rather than vertical (like a phone).
By uploading an image, you agree to give LMR.com ® permission to use it in future advertisements and promotions.
4.6L V8 Automatic transmission; Has Steeda cold air intake, bunch of appearance mods, sway bar kit, hood vents; I originally owned a Silver 2005 stock V6, but the original owner, Brittany Burns, passe...