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RHS Pro Action S/B Chevy Cast Iron Heads, Angle Plug

Price: $839.99 - $949.99
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These heads deliver significant gains in both power and torque for all Small Block Chevy applications - right out of the box. Available for a variety of applications (see chart). All heads feature a multi-angle Serdi valve job.

  • Standard port 23° head
  • Accepts standard Chevy rocker arms and valve train components
  • Advanced port/runner/chamber design & modified water jacket for optimal performance & added reliability
  • Multi-angle intake & radiused exhaust valve seats for up to 5% more airflow 
  • 200cc recommended for 327-350 c.i. up to 400+ HP
  • 220cc recommended for 383-400+ c.i. up to 550+ HP

Application Chart (GIF)

Roller Ready - Please specify cam lift when ordering. 

Complete heads are made to order, please allow 3-4 days to assemble.

  • Recommended Spark Plug: 14 mm, 5/8" hex, .480 reach plugs, tapered shaft
  • Approximate Compression Ratios Chevy 350 w/ Keith Black 474-120 flat top pistons:
    • 64cc = 10.2 to 1
    • 50cc = 12.04 to 1 
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PRO HEADS 200cc/50cc ANGLE
Item #:
5902236
Item Details:
Angle Plug
200cc Intake, 50cc Combustion Chamber
Made to order, allow 3-4 days to assemble.
 
(0 Rating)
PRO CYL HEAD 200cc/64cc ANG
Item #:
5902233
Item Details:
Angle Plug
200cc Intake, 64cc Combustion Chamber
Made to order, allow 3-4 days to assemble.
 
(0 Rating)
PRO HEADS 220cc/50cc ANGLE
Item #:
5902237
Item Details:
Angle Plug
220cc Intake, 50cc Combustion Chamber
Made to order, allow 3-4 days to assemble.
 
(0 Rating)
PRO HEADS 220cc/64cc ANGLE
Item #:
5902238
Item Details:
Angle Plug
220cc Intake, 64cc Combustion Chamber
Made to order, allow 3-4 days to assemble
 
(0 Rating)
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Item #:
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Item Details:
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