Engine Machine Services
Contact SDR Racing by phone or E-mail: sdr[email protected]
Cylinder Head and Cylinder Block work
Align bore- Must have block and sump cover
Hone cylinder- Clearance only
Bore cylinder
Install valve guides
Sleeve cylinder block for 31cid
Machine and install DU bushing
Port block and install exhaust bushing and blend (vib)
Port OHV head
Replace stock intake seat
Replace stock exhaust seat
Head resurfacing
Chamfer lifter bores
Cut pockets to relieve springs (vib)
True block to straighten surface
Deck block to specific pop-up
Machine Piston top
Resurface valve seats
Reface valves
Set valve lash (vib)
SDR has 6 sets of rollers rockers built for the single OHV engine. These are the only true roller rockers on the market for the briggs engine. They are made by one of the oldest roller rocker manufacture to my specs.They will require some machine work to the head. (Basic hand tools) They also will require a 3/4 spacer under the valve cover it will be drilled for a fuel pump fitting. Here is the best part the rockers they will have a life time warranty. I also have 4 sets made for the Vanguard engines. These are drop in. I hope to have the roller rockers for the Intek V twin ready by Thanksgiving. Call for prices.
SDR offers replacment valve guides for the single OHV head and the V twin intek. No longer do you have to replace the head NOW just replace the guides. The Guides are in stock now. Cost is $10.50 ea installed and reamed plus shipping. Or SDR will sell them direct.