Harley Davidson Evolution Head Gasket

Turn your 1340cc Harley Davidson Evo into a big bore 85ci machine.

Harley davidson evolution head gasket. Screamin Eagle High Tensile Cylinder Studs PN 16505-01 are required for engines with compression rations above 1001. If tightened properly its unlikely a head bolt backed out. However the gasket works the same way a valve cover gasket works on an automobile acting as a seal between the rocker cover and the rocker box.

Track down the leak and replace it with quality Harley engine gaskets from brands like Colony Cometic Gaskets Genuine James Gaskets JIMS SS Cycle Twin Power V-Twin Manufacturing and more. To save the company once again Harley-Davidson needed to evolve. ATV Drag Race Domestic Automotive Harley-Davidson MXDirt Off-Road PWC Road Race Snowmobile Sport Compact and Street.

This will give the engine a mechanical compression ratio of almost 951. This multi-layered head gasket provides improved sealing for 3-78 Big Bore high performance engines. The valve cover gasket on a Harley-Davidson Evo Blockhead engine is traditionally called the rocker cover gasket.

But since you had the head off and on Id suspect a leaking head gasket. H-D Parts Screamin Eagle Evolution 1340. Install new O-rings over the cylinder dowels before installing the new head gasket.

Sold in pairs. 50 out of 5 stars. 6 Jun 20 2018.

This is considered the minimum compression ratio needed to make serious power from a. And in 1984 they did just that with the release of the Harley Evolution engine. Discussion Starter 1 Jan 8 2009.