Ford Racing 427 Cubic inch BOSS Short Block

SKU: FRPM-6009-427F

Short Block Engines

FR Short Blocks...

Ford Racing

Ford Racing 427 Cubic inch BOSS Short Block

SKU: FRPM-6009-427F

Short Block Engines

FR Short Blocks...

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Description

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 in. 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.

Product Overview

Features and Benefits

Boss 4-Bolt Main Block

Product Details

Description:	Boss Short Block Engine
Part Number:	frpM-6009-427F
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Prop 65 Warning Label:	CAProp65.png
Prop 65 Yes/No:	Yes
Title:	Ford Performance - 427 Cubic Inch Boss Short Block - M-6009-427F
WARNING CA Proposition 65 Message:	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING CA Proposition 65:	Yes

Part Type

Short Block Engines

Data: v4.2 - Upd: 2026-10-13 22:16:24

Features

Boss 4-Bolt Main Block

Specifications

Product Attributes - Brand: Ford Performance Parts
Product Attributes - Manufacturer's Part Number: M-6009-427F
Product Attributes - Part Type: Short Block Engines
Product Attributes - Product Line: Ford Performance Parts 427 C.I.D. Boss Short Block Assemblies
Product Attributes - UPC: 756122117231
Product Attributes - Crate Engine Family: Ford Windsor
Product Attributes - Actual Engine Displacement: 7.0L/427
Product Attributes - Rear Main Seal Style: 1-piece
Product Attributes - Crankshaft Material: Forged 4340 steel
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Short Block Piston Style: Flat top
Product Attributes - Connecting Rod Material: Forged 4130 steel
Product Attributes - Connecting Rod Beam Style: H-beam
Product Attributes - Engine Block Material: Cast iron
Product Attributes - Main Journal Type: Ford 351 Cleveland
Product Attributes - Deck Height (in.): 9.500 in.
Product Attributes - Engine Balance: Internal
Product Attributes - Oil Pan Included: No
Product Attributes - Timing Cover Included: No
Product Attributes - Harmonic Balancer Included: No
Product Attributes - Flexplate Included: No
Product Attributes - Flywheel Included: No
Product Attributes - Assembled: Yes
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Engine features 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. The engine also has SCAT forged steel H beam connecting rods with floating pins.

Reference Information

Brand Name/s	Ford Racing
StreetFX SKU	frpM-6009-427F
SFX Item ID	4303151
Supplier Item Code	4303151
Manufacturer SKU	M-6009-427F
Manufacturer UPC	756122117231
Alternative References	FMS-M-6009-427F