HP Copper Spark Plug - Shorty - 0437S-4 Sale Total Height with 92/105mm EFI

Total Height with 92/105mm EFI Plenum Top – 12

4L V8 1981 Pontiac Firebird   267/4

7L V8 1975 - 1986 Chevrolet G30 350/5

Application Small Block Chevy Baffle Included No Bolt Pattern Perimeter Brand Holley Breather Opening Size N/A Breather(s) Included No Construction Fabricated Emission Code 3 Finish Black Flange Thickness 0

8" Rear Axle

HP Copper Spark Plug - Shorty - 0437S-4 Sale Total Height with 92/105mm EFIOverview: ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3 16 in to 3 8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain