500HP+ Small Block Chevy 350 Cylinder Heads - Angle Plug - DRP Assembled suit Hydraulic Flat Tappet Pac Springs StreetlineSBC

DRP SBC Chevy 350 Cylinder Heads - *PAIR*

Complete Assembled to suit Hydraulic Flat Tappet camshafts with PAC Racing Dual Valve Springs

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

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 FLAT TAPPET & includes:

• DRP Cylinder Heads Pair- Hand assembled by Total Performance using, PAC racing springs, Comp Cams hardware and DRP Stainless Valves (hand built in Melbourne)
• PAC Valve Springs (LS type Dual) inners can be left out for cam break in - just ask. 
• Comp Cams - Hardware.
• DRP - 5000 Series valves - Stainless Steel 241-N with a 30° back cut on the intake for improved flow and performance.
• Sold as a PAIR

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

* Flown on a Superflow 600 with a 4.030" Bore and a 30° back cut to the intake valve. 

* 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°