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Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads
Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads

Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads

Cast Iron, Natural, 70cc - 79cc Combustion Chamber Volume Range, Straight Spark Plug Style

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Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads
Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads
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Part # 9154622
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Cylinder Head Style:
Select Model to see
Material Type:
Cast Iron
Finish:
Natural
Combustion Chamber Volume:
76cc
Intake Runner Volume:
176/178cc
Combustion Chamber Volume Range:
70cc - 79cc
Intake Runner Volume Range:
170cc - 179cc
Spark Plug Style:
Straight
Intake Port Shape:
Rectangle
Exhaust Port Shape:
Square
Intake Valve Diameter:
1.940"
Intake Valves Included:
Yes
Exhaust Valve Diameter:
1.500"
Exhaust Valves Included:
Yes
Valve Spring Included:
Yes
Valve Seat Machine Style:
3-angle
Valve Seats Machined:
Yes
Locks Included:
Yes
Lock Style:
7 Degree
Retainers Included:
Yes
Retainer Material:
Steel
Stud Diameter:
0.380"
Sold in Quantity:
Each
MFG. Part #:
Select Model to see

Info

This head is engraved and serial numbered by Engine Quest for IMCAs Sport Mods, Stock Cars, and Hobby Stocks. Now approved for WISSOTA Midwest Mods and Street Stocks.

Assembled heads will include the following:

  • 3/8" screw in studs # 915-99156
  • 76 cc combustion chamber
  • 176-178 cc intake runners
  • Straight plug
  • 1.94/1.50 intake/exhaust valves #910-14140-1 & 910-14145-1
  • Available bare or assembled and blue printed
  • Heavy duty valves
  • (COMP) version includes Retainers and locks # 915-39741 & 577-555
  • (COMP) version includes 1.25" high-performance valve springs # 180-671515
  • (SM-Sport Mod) version includes Isky Springs # 450-235D, 7 deg locks and Ferrea tool steel retainers
  • (SC-Stock Car) version includes Isky Springs # 450-235D, 7 deg locks and Ferrea tool steel retainers, Max Flat Milled w/ intake surface corrected
  • Three angle valve job

 

 

Item Details

Straight Plug
1.94/1.50 Intake Valves

Notes

Assembled version will include the following:

COMP -  Utilizes Speedway valve springs 180-671515 and 915-39741 retainers.

SM - The Sport Mod version has upgraded Isky valve springs 450-235D, tool steel retainers and spring locators.

SC - The Stock Car version has the same Isky valve spring components as the SM unit and also has been surfaced to max out the compression rule for the IMCA Stock Car.

 

Notes

Manufactures recommends using R5673-8 NGK or equivalent spark plugs. (373-133 or 373-134 Autolite).
Some parts are not legal for use in California or other states with similar laws/regulations

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