427 CUBIC INCH BOSS SHORT BLOCK
- Shipping costs and lead times 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.
- Engine type: 351 based small block Ford
- Displacement (cu in): 427
- Bore x stroke (in): 4.125" bore x 4.00" stroke
- Block: Boss 4-bolt main block M-6010-BOSS35195 9.5" deck height
- Piston to Deck Height: .005" below piston to deck height (nominal)
- Crankshaft: SCAT® Forged Steel: 4.000" stroke
- Connecting rods: SCAT® forged steel H beam connecting rods with floating pin and ARP® bolts
- Pistons: Mahle® forged aluminum, with reliefs for Z304D, Z304P, N351, and other inline valve Windsor cylinder heads. 17 cc piston dish. Check piston to valve clearance.
- Hydraulic roller camshaft compatible
- Internally balanced
- Recommended cylinder head fasteners M-6065-BOSS head bolts or M-6014-BOSS studs depending on application
- Most aftermarket performance cylinder heads are compatible with this short block. Ford Performance short blocks are built with pistons designed for 20° valve angle heads and will fit stock or spread valve guide centerlines.
- Works well with Ford Performance cylinder heads M-6049-Z2 and M-6049-X2
- Designed for M-6049-X306//X307/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
- 351W bolt pattern, oil pan and timing cover
- High-performance harmonic balancer M-6316-D302 is recommended
- Built with all NEW PARTS
- Photo and specs may vary
Shipping costs and lead times can vary, use the contact form below to confirm order cost and timeframe.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at brian@paulsautomotiveengineering.com. Please note that returns will need to be sent to the following address: 9750 Conklin Road Blue Ash, OH 45242
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at brian@paulsautomotiveengineering.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. If we do not receive notice within 7 days of receiving order, we cannot process return.
Exceptions / non-returnable items
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at brian@paulsautomotiveengineering.com.
