Shaft rockers are lighter than stud mounted and at least as rigid
The correct intake to exhaust valve size, smaller exhaust valves allows us to move the intake valve away from the cylinder wall
High velocity, correctly sized ports, peak power ~8750rpm with a flat long power curve.
Rockers made from 2024 material for its superior mechanical properties
Rockers use full compliment needle bearing pivot for minimal friction
Non Beryllium Copper Valve Seats (4 times the heat conduction of steel seats to remove heat from valves) (same material as cup car engines)
Premium Stainless Valves 1.25" Intake and 1" Exhaust
High Efficiency Combustion Chamber with 10mm spark plug to reduce distortion
Maximized cooling by use of many well placed fins to aid in reliability and power
High performance manganese bronze valve guides
Competition Cams premium valves springs Included_Constructed from Pacaloy®
DED Billet 7075 light weight high strength retainers
DED racing has taken its 20 years of air cooled cylinder head development experience and integrated it into our new billet Honda/Clone head. Introducing the SBH designed to be an affordable replacement/upgrade for the stock cast head. With its integrated rocker arms, superior flow and rigidity it offers performance and value that can't be matched by a cast head or even other billet heads. It is designed to be a true bolt on product where the critical items are included so you don't have to search far and wide to get your project together. This also allows us to ensure that things like rocker arm geometry is optimized and perfect. ( Simply, More Powerful- means we offer products that make your sport more fun not more frustrating).
Valves, Springs, and Retainers
O Ring Seals
Head Bolts and Other Hardware
1.25:1 True Shaft Roller Rockers
Valve Cover Spacer
Already Cut to Length 212 Pushrods, or Cut to Length Pushrods
Intake Tube Color will match your selected Valve Cover Tube Color
Valve Cover Spacer with Breather Bypass_Or #2 Required
SVC Billet Valve Cover
Already Cut to Length Chromoly Pushrods for 212cc Engine
Cut to Length Chromoly Pushrods_ for custom applications
Welded intake manifold_Straight, Curved (For flat mount) , 11 deg curved for 5 to 15deg motor mount
Tillotson Carb Adaptor_ 1.125 (HL380 Bore Carb)
Stud Mounting Kit
Calibrated 28mm Flat Slide Carburetor for Methanol
Calibrated 28mm Flat Slide Carburetor for Gasoline
Karting Exhaust Kit
Replacement O rings
1/4" Chromoly Pushrod_Required
Billet Connecting Rod_Required
High Performance Piston_ Highly Recommended
Run with at least 16 OZ of 4T Briggs and Stratton/Amsoil Oil
.310 or less lift Cam Shaft_with the 1.25" rockers this lift is optimal.-Bigger Cams waste torque and reduce the overall power output of the head.
28mm Carburetor, or HL 380 series Tillotson style carb_ Intake ID is 1.125"
Methanol Fuel is highly recommended for its cooling and power effect.
Race Gas/Premium Mix_ 50/50% but, a 212 could probably run on 93 oct OK for drag racing applications where less heat is present.
Timing 30-32 on Gas 33-35 on Methanol
Requires the use of a SFI approve Billet Flywheel! Never use anything but an SFI billet flywheel with our engine products.
This head is designed for sanction racing events only and must be installed by a qualified technician with knowledge of the sport you compete in.