500HP Chevy 350 Cylinder Heads, Assembled for Hydraulic Roller Cam, Streetline Springs. SBC Small Block

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

*PAIR* Complete - Assembled to suit Hydraulic Roller - using PAC Valve Springs. 

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 in Australia using (PAIR)

• DRP Streetline Valve Springs by PAC Racing. 

•            145LBS Seat & 350LBS Open @ 0.550" Lift.  (Max lift 0.740"/060" to coil bind)

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

• DRP - 5000 Series valves - Stainless 241-N with a 30° back cut on the intake for improved flow and performance. 

• Sold as a Pair

Chevy 350 Cylinder Head Specs: 

• Engine: Small Block Chevy, SBC 350, 383, 400

• Intake Port: 196cc 

• Exhaust Port: 

• Intake Valve Dia: 2.020"

• Exhaust Valve Dia: 1.600"

• Combustion Chamber: 64cc

• Spark Plug Angle:  Angle Plugs

• Adjustable guide plates  - see listing part DRP-4835-GP
• Rocker Studs  - Part # 4512-16 Comp Cams - or ARP 100-7101