RFD 15 Degree "Monster"

The RFD15 is the most bad azz 15º head available for big inch small blocks.
Designed from the ground up as a large cubic inch head with matching cast 4 intakes available the Monster is capable of 900+ hp with a single 4 And well over 1,000 hp with Nitrous. The Edelbrock Pro Port casting is one of the best. It's designed to use 18º manifolds !

We have several port & chamber designs for Circle Track, Road Race and Drags. Please call with your application.

No other 15º head compares!


Name: RFD 15 Degree "Monster"


Platform: Small Block Chevy

Price: $4,250

Price is for complete set

Cylinder Head Specifics

Bore: 4.125
Intake Valves: 2.18"-2.22"
Exhaust Valves: 1.6"
Flow: 410

Other Specs

> A 356 T-6 Aluminum
> Ductile Iron Valve Seats
> Bronze Alloy Valve Guides
> Standard 18º Intake Manifolds
> Requires Shaft Rockers
> 52cc Chambers
> Super thick 3/4" decks
> Drilled for center Ex cooling
> HIP Processed super strong castings
> Standard GM Spread port ex pattern
> Several port sizes available
> 256,271,284,320
> 2.18"or 2.2" Intake and 1.6" Exhaust
> 1.65" Double roller valve springs
> 10º Titanium Retainers

Upgrades Available

Total: 4250.00


  • CNC Ported Cylinder Heads

  • Welding, Repair & Fabrication

  • Custom CNC Machining

  • Cylinder Head Development


Monday-Friday 10am-6pm EST

545 South Birdneck Road
Suite 109 Virginia Beach, VA 23451

Phone- (757)222-9717

Fax- (757)222-9890

E-Mail- info@raceflowdevelopment.com