DRD Machine Services 
Aircooled Head Work Price Guide

DRD offers machine services for your aircooled heads and engines. Our in-house machine services cover your every need. If your looking to customize your heads or engine, give us a call.

Type 1 - Machine Services Price List
Description Price
Rebuild heads (pair) $200.000
Bore heads for larger cylinder (pair) $35.00
Install new valve seats, pair $100.00
Replace 1 valve guide, includes guide $10.00
Guide boss repair $10.00
Valve job, multi angle (pair) $80.00
Cut for dual springs (pair) $25.00
Weld and surface intake manifolds (pair) $100.00
Full flow case $30.00
Stroker Cleance case $75.00
Hone cylinders for proper clearence $40.00 set of 4
Misc Machine time $60.00 per HR
Stroker clearance case $75.00
Bore and deck case for large cylinders $45.00
Machine cylinders to length $75.00 per set of 4
Balance engine assy $125.00
Machine cylinders to 90.5 $75.00 set of 4
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