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Charts & Guides for Part Number SUM-HEMI2125761D
Summit Racing™ Precision Cast Gen 3 5.7L/6.1L Hemi Cylinder Head SUM-HEMI2125761D
Part Number: SUM-HEMI2125761D
Summit Racing™ Precision Cast Cylinder Head
Gen. 3 Hemi CNC Cylinder head, 5.7/6.1L, 212cc Int. runner, 69cc CNC combustion chamber, 2.125 Int./1.650 exh..600 Lift, 2.88 CSA,Dr..side,
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Estimated Ship Date: Monday 10/26/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-HEMI2125761D
Part Type:
Product Line:
Summit Racing Part Number:
SUM-HEMI2125761D
UPC:
190861320956
Combustion Chamber Volume (cc):
69
Intake Runner Volume (cc):
212cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic roller
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.125 in.
CNC-Machined Combustion Chamber:
Yes
CNC-Machined Intake Runner:
Yes
CNC-Machined Exhaust Runner:
Yes
Combustion Chamber Style:
Hemi
Intake Port Location:
Standard
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Spark Plug Style:
Angle
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.650 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.600 in.
Outside Diameter of Outer Spring (in.):
1.290 in.
Damper Spring Included:
No
Number of Springs Per Valve:
Dual
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Locks Included:
Yes
Lock Style:
10 degree
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
Positive stop
Rocker Arm Studs Included:
No
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
No
Valve Cover Mounting Style:
Perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Intake Valve Angle:
18
Exhaust Valve Angle:
16.5
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Finish:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Driver side cylinder head.
Summit Racing™ Precision Cast Cylinder Head
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price!
We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish.
They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers.
The final result is the performance you want and Summit Racing™ quality you TRUST!
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Some parts are not legal for use in California or other states with similar laws / regulations
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