ASSEMBLED PAIR Ford V8 SBF Windsor Aluminium Cylinder Heads DRP 289 302 351W HYD ROLLER

DRP Small Block Ford Cylinder Heads – Assembled to suit Hydraulic Roller Camshafts.

Fitted with FERREA 5000 Series Valves & light weight PAC LS style dual valve springs kit.

Premium parts used & assembled here in Melbourne VIC. 

*See the photo of the internal cast quality. We cut a cylinder head in half to verify the thickness and quality. These castings are exceptional quality.

These Cylinder heads flow and work like you wont believe. Best Bang for your Buck!

Don’t waste your time or money on rebuilding old Cast Iron units - upgrade now. Forget the headaches, poor valve seats and crack testing woes.

Have confidence and pride these are quality items Hand Assembled right here in Melbourne Australia.

Exceptional Quality for a Wow factor of a price!

 

Brand New Pair of genuine DETROIT RACING PRODUCTS Cylinder heads. 

Sold as an ASSEMBLED pair. 

*Please note there are copies of these cylinder heads. We offer the Genuine DRP, look for the machined logo on the end of the heads. 

Differences are: 

Port Shape, High Torque inlet runners that flow 500hp @ .450" lift

Internal Cast Quality (Super Smooth Water Jackets for maximum flow - see our photos of the internal casting) 

• Optimal Spark Plug position.  (The copies don’t have this location.)
• Super-efficient Combustion Chamber  
• Premium Bronze Valve Guides.
• Hard 355-T6 Aluminium - Race Quality.
• 3 Angle Valve Seats
• Inlet Port Volume: 185cc
• Exhaust Port Volume: 64cc
• Intake Valve size: 2.02" 
• Exhaust Valve size: 1.60"
• Recommended Spark Plugs: 750 reach gasketed 5/8 hex. NGK-BCPR7ES
• Recommended Intake Gaskets: Felpro 1262
• Recommended Guide Plates: Comp Cams 4816-8
• Minimum Chamber size 54cc (can be machined down)
• Flat Mill:   .006" per cc (54cc minimum chamber size)

Flow Figures:   flow in CFM

Flow Figures: Taken at 28"hg on a 4.030" Bore.

HP figures are "Potential" based on Flow/Velocity calculations* 

Lift          Intake          Exhaust

200          120               87

300          181             134

400          223             159

450          244             163   -   503hp* + Exh flow 66% of Inlet

500          250             167   -   516hp*

550          256             168   -   527hp* + Exh flow 66% of Inlet

600          260             167   -   537hp* + Exh flow 64% of Inlet

650          261             169   

700          262             168

*Output will be determined by your combination and quality of the motor build. 

 

Please allow 4 days to assemble.

NOTE: Photo shows Comp Cams standard valve springs.