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Dart Small Block Chevy SHP Assembled Cylinder Head 180cc Intake Ports

301-127121


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Dart 127121
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$617.53
4 left in stock
Small Block Chevy SHP Assembled Cylinder Head
  • 180cc Intake Ports
  • 64cc Combustion Chambers
  • 2.02" Int/1.60" Exh Valves
  • 1.250" Single Valve Springs
  • 3/8" Rocker Studs
  • 5/16" Guide Plates
  • Straight Plugs
  • 1/pkg
  • Free Shipping - Ships
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    127121 - Dart SHP Small Block Chevy Aluminum Cylinder Heads is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from DART SHP 180 64CC To start these heads are installed on a 9.7:1 350 Chevy, small Comp Cam with an Edelbrock EPS intake and Holley 770 carb. Heads looked really nice out of the box. I ended up not using the supplied DART guide plates. After reading several other threads about the pushrods not fiiting through the guide plate I encountered the same issue. I swapped the Manley guide plates off the cast iron heads I was replacing and the fit was much better. I also used head bolts with washers. The length of the bolt is a little bit longer to compensate for the washers. Permatex high temp thread sealant was used on the threads The tech sheet that comes with the heads said +/- .100 pushrod. I installed the heads and checked the valve train geometry and the stock 7.8 pushrod length was perfect. I ordered some Comp Cams 7372-16 pushrods through JEGS also. Nice pushrods. Before I installed the heads I went to the local parts house with the heads to look at different spark plugs/reach. The tech sheet says to use .750 reach 14mm hex with gasket. I tried different plugs from AC, NGK, Champion and Autolite. I ended up buying the Autolite 3924. I'm using an stock HEI with some springs installed and gapped the plugs at .035. Car starts up nicely and plugs are burning really clean. I'm sold on the Autolites.
    Date published: 2016-12-12
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