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$348.99
RHS 11991-01 BBC Cylinder Head Valve Kit, 1.630/2.25/1.88,Solid Roller
RHS 11991-01 BBC Cylinder Head Valve Kit, 1.630/2.25/1.88,Solid Roller

RHS 11991-01 BBC Cylinder Head Valve Kit, 1.630/2.25/1.88,Solid Roller

396 Chevy Big Block V8, 402 Chevy Big Block V8, 427 Chevy Big Block V8, 454 Chevy Big Block V8

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RHS 11991-01 BBC Cylinder Head Valve Kit, 1.630/2.25/1.88,Solid Roller
RHS 11991-01 BBC Cylinder Head Valve Kit, 1.630/2.25/1.88,Solid Roller
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We estimate this item will ship on or before July 2nd.
Part # 5901199101
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Racing Head Service to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

GTIN Code:
036584210634
MFG. Part #:
11991-01
Sold in Quantity:
Kit
Damper Spring Included:
Yes
Exhaust Valve Diameter:
1.88"
Exhaust Valves Included:
Yes
Intake Valve Diameter:
2.25"
Intake Valves Included:
Yes
Lock Material:
Hardened steel
Lock Style:
10 Degree
Locks Included:
Yes
Number of Springs Per Valve:
Dual
Outer Spring O.D.:
1.639"
Retainers Included:
Yes
Valve Material:
21-4N stainless steel
Valve Stem Diameter:
0.342"
Valve Spring Included:
Yes
Valve Spring Style:
Standard

Info

When it comes to street performance and/or competitive racing, the horsepower capability of cylinder heads can be limited if not used with the right parts. Cylinder head studs and components can mean the difference between high performance durability and stress-related component failures. RHS tests all of its cylinder heads with premium COMP Cams components giving you the optimal airflow combination for maximum engine performance. These exclusive RHS part kits give you the ideal combination of components for your cylinder head assembly and are proven to offer superior performance for your specific engine application.

11991-01 Assembly Kit:

    • Fits Big Block Chevy cylinder heads
    • Includes premium COMP Cams components
    • Contains enough parts to assemble ONE cylinder head

11991-01 Includes:

      • 4 Sportsman Stainless Steel Intake Valves 2.250" 11/32, + .250" Long (COMP Cams Part# 6022-1)
      • 4 Sportsman Stainless Steel Exhaust Valves 1.880" 11/32, + .100" Long (COMP Cams Part# 6023-1)
      • 8 Super Locks 10° Angle, 11/32" Stem (COMP Cams Part# 611-1)
      • 8 Titanium Retainers 10° (COMP Cams Part# 733-1)
      • 8 Dual Valve Springs 1.639" O.D. (COMP Cams Part# 991-1)
      • 8 Spring I.D. Locators .060" Thick, .570" I.D. 1.625" O.D. (COMP Cams Part# 4774-1)
      • 8 Metal Body Viton Valve Seals .530" Guide, 11/32" Stem (COMP Cams Part# 529-1)
      • 8 Hi-Tech Race Rocker Studs 7/1612 " Diameter, 7/16" Base Thread size (COMP Cams Part# 4512-1)
      • 4 Guide Plates for 3/8" sized pushrods (COMP Cams Part# 4806-1)
Some parts are not legal for use in California or other states with similar laws/regulations

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