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Vehicle Info NeededShort Block 427ci. Boss
Ships on 10/06/2026
Lowest Price Guarantee
- 427 cubic inches
- Boss 4-bolt main block M-6010-BOSS35195 9.5" deck height
- Mahle forged aluminum 4.125" bore pistons with valve reliefs for Z304, N351, GT-40 and other inline valve Windsor cylinder heads. 17cc effective dish volume, check piston to valve clearance
- 0.005" below piston to deck height nominal
- SCAT 4.000" stroke forged steel crank
- SCAT forged steel H beam connecting rods with floating pin
- Hydraulic roller camshaft compatible
- Neutral Balance rotating assembly
- Recommended cylinder head fasteners M-6065-BOSS head bolts, M-6014-BOSS studs, or M-6014-Z304 studs, depending on application
- 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
- Assembled and ready for your heads, cam and timing chain set
- Requires head gaskets M-6051-R351
- Built with all NEW PARTS
- Photo and specs may vary
The Ford Performance 427 short block lets you build it your way by adding your choice of heads, cam, intake and oil pan. It's the perfect foundation to build a powerful 9.5" deck engine for your vintage muscle car, street rod, Fox Body or Late Model Mustang. This is the same short block used in the 575 HP Z427 crate engine. Nothing but the best parts are used inside including: forged crankshaft, forged I-beam connecting rods with floating piston pins and the BOSS 351 block. This short block is hand assembled with performance clearances in the US. The 427 short block fits many of the vehicles originally built with Windsor and Cleveland small blocks.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Build Your Engine Exactly How You Want It From The Block Up
Ford Racing offers these short blocks to allow anyone to build an engine for their Ford exactly how they want it. The Ford Short Block is the perfect start to any Ford engine build. Short block offerings start at the versatile modular 5.0L Stroker block, all the way up to the base of a 460CI. When using Ford Racing Short Blocks to build your next engine, the options for performance are endless!
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Features
- Start Your New Engine Build With High Quality Blocks
- Precision Engineered To Provide Maximum Performance
- Endless Power Possibilities
