SPOOL XR6 Short engines are built and blueprinted for a 1000HP plus.

Machining and blueprinting:

Supply XR6 short

Dismantle XR6 block

Hot tank and wash XR6 block

Torque plate bore and hone block

Supply and remove/fit welsch plugs

Grind crank

Nitride crank

Regrind crank to size

Drill out soft plugs

Install grub screws

Mount and measure crank main journals

Mount and measure crank big end journals

Mount and measure crank in block with rods fitted

Check conrod small ends / piston pins and clearance

Check piston to bore clearence

Balance assembly

Install No#1and 6 rod and pistons – check deck alignment

Deck / machine block

Clean and inspect

Measure and set bearing clearances

Measure piston to bore clearances

Set ring gaps

Assemble short engine assembly – 6 cyl

Parts Supplied:

Supply XR60 Block and crank

Supply and install CP forged pistons

Supply and install SPOOL XR6 H beam conrods

Supply and install ACL race series main bearings

Supply and install ACL race series big end bearings

Supply and install ARP main studs