This part ships for FREE via UPS Truck Freight shipping!
Fully forged bottom end
Lots of cubes for not a lot of money
Boss 351 block
Mahle forged pistons
SCAT forged h-beam rods
SCAT forged crank
What's in the Box
(1) FRPP BOSS 427 short block
427ci Boss Short Block Assembly
The Ford Racing (FRPP) M-6009-427F Short Block offers up 427 cubic inches of nearly unbreakable power for your Mustang. It starts off with a 9.5" deck height BOSS 4-bolt main block M-6010-BOSS35195 that is roller cam compatible. Then it's stuffed with all forged goodies like SCAT h-beam rods & 4" stroke crank & 4.125" bore 17cc dished MAHLE pistons.
The rotating assembly is neutral balanced, so a neutral balance harmonic balancer & flywheel or flexplate will be needed.
Designed for M-6049-X306//X307/C3/D3/Z304DA & other high flowing large valve cylinder heads intended for use on a 351W.
Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads.
Short Block is fully assembled. Cylinder heads, cam, timing chain set, oil pan, intake, & other dress & accessories not included.
ARP-1543603 head bolts are required for this block
Requires head gaskets M-6051-R351
- Fits 1979-1995 Ford Mustangs
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Testimonial: Awesome products and great service!!!!
Your website was great to restore my 1991 LX mustang. I found everything I needed including great tech articles and even had to return the product with no hassle at all prices were great shipping go superfast of course free could not of asked for anything more. Once again great job and I will be purchasing more in the future.
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