Proline Chevy 350 Cylinder Heads DRP ASSEMBLED HYDRAULIC ROLLER SBC Small Block (pair)

DRP SBC Chevy 350 Cylinder Heads for sale

Assembled Complete with Ferrea Valves & Proline Valve Springs suit Hydraulic Roller Camshafts

500HP and 460ft/lb of Torque from a 350 Small Block Chev*

Wow of a price for such a great Horsepower and Torque!!

*Dyno results are from a 350 Chev with a Solid Flat Tappet. 

Heads are assembled for HYDRAULIC ROLLER & includes:

•  DRP Cylinder Heads - Hand assembled by US using PAC springs,Comp Cams hardware, Ferrea Valves (hand assembled in Melbourne)
• DRP Proline Valve Springs by PAC Racing - Small OD LS style Dual Valve Springs.
  • 160LBS Seat & 390LBS Open @ 0.550" Lift. 
  • Max Lift: 0.670"
  • High RPM, Polished Dual Valve Springs

      °Comp Cams - Retainers, Locks, Spring Seats, Seals 

      °Ferrea - 5000 Series valves

REQUIRES:

• Adjustable guide plates  - see listing part # DRP-4835-GP
• Screw in Rocker Studs  -  see listing part # 100-7101 - ARP

These heads flow 530hp @ 0.550" lift

Flow Figures*:          

Lift          Intake          Exhaust

200          145             106

300          192             135

400          232             160

450          242             168   503hp

500          250             178   

550          257             179   530hp

600          261             181   537hp

650          260             187   

700          255             190

Please allow 5 days to assemble the heads. * If you need these sooner, just ask. 

* Results will vary depending on your build and combination of other items. 

This Dyno test was carried out with a Solid Flat Tappet Camshaft,255/256 Duration and 0.540/0.534" valve lift with a 106 LSA. 1 3/4 Headers, Electrical Water pump, Edelbrock Victor Jnr Single plane intake (we feel you will achieve similar results with an air gap dual plane. 11:1 Compression with a domed Piston. 34°

350 CHEVY DYNO RUN - 500HP  https://www.youtube.com/watch?v=vpwIgJIN5X8

383 CHEVY DYNO RUN - LOW COMP 95 OCTANE  https://www.youtube.com/watch?v=iAEie9M4fz8