23" DODGE PLYMOUTH 218 230 GEN II EDGY HEAD - FREE DOMESTIC SHIPPING
- PLEASE NOTE. THIS RUN OF HEADS WILL NOT BE SHIPPED UNTIL DECEMBER 2020 AT THE SOONEST! WE APOLOGIZE FOR THIS BUT THERE ARE TOO MANY UNCERTAINTIES DUE TO THE COVID PANDEMIC.
FREE DOMESTIC SHIPPING (lower 48 only). NO INTERNATIONAL SHIPPING without prior approval written approval and additional shipping fees. IT HAS BECOME DIFFICULT AND COST PROHIBITIVE TO SHIP OUTSIDE OF THE US.
EDGY cylinder head for your Dodge or Plymouth 23" L-head six cylinder engine. These high quality Gen II EDGY heads are cast in the USA from A356-T6 aluminum, and meticulously CNC machined in Montana by students of the SKILLS USA high school shop program.
Please check your application, but this should fit 1933 to 1959 Dodge and Plymouth 190, 201, 218, & 230 US built engines with 23" head. The casting does have the provision of the water bypass, but YOU will be responsible for drilling it (call for instructions), which is a very simple procedure.
Back by popular demand, these are the only NEW high compression cylinder head available for L-head Mopar sixes. These 74cc heads raise the compression ratio of your engine to approximately 9.0:1 and provide an instant, noticeable horsepower increase. The Gen II head, while based on the original EDGY head, has had numerous improvements; including increased coolant circulation, redesigned core pattern, improved metallurgy, higher quality control, CNC machining, and other features.
Please note that if your engine is tired & worn it will also increase stress and blow-by!
Additional recommendations (but not necessary) are-
Our "Boy Racer reground" camshaft
Headers or split exhaust with 2.5" single exhaust pipe and low restriction muffler.
Two carb intake or our EFI intake.
Pertronix ignition and/or MSD ignition.
Addition of overdrive or numerically lower rear axle gearing.
This is identical to the head that won the 2019 Peking to Paris Endurance Rally!
Over fifty sold with 100% positive feedback.
We have achieved 150 RWHP drama-free (a 50+% increase) on our professionally built engines with the above modifications, on regular pump gas, while achieving 18-20 MPG.
*THIS DOES NOT INCLUDE A HEAD GASKET.
*THIS HEAD MAY REQUIRE YOU TO USE A NON-STOCK WATER NECK, MODIFY YOUR THROTTLE LINKAGE, OR OTHER MODIFICATIONS.
*ARP STUDS ARE RECOMMENDED.
*PLEASE STRICTLY FOLLOW OUR INSTALLATION AND RE-TORQUING INSTRUCTIONS ON OUR TECH FAQ PAGE.
*THERE IS SUFFICIENT MATERIAL FOR ADDITIONAL COMPRESSION BUT YOU WILL NEED TO POCKET THE CHAMBER AREA TO AVOID VALVE CONTACT.