All head studs were installed finger-tight. Our taller-than-OE Crane roller lifters required the use of spacer washers between the block and lifter buckets. The oiled roller lifters are inserted into the OE plastic lifter buckets. These register flat-to-flat, orienting the lifters properly for roller bearing operation at the lobes. With all four lifters snapped into [...]
PISTON/ROD INSTALLATION With the cylinder bores wiped clean with a lint-free towel, apply a light coat of engine oil to the walls. After making sure that the connecting rod and cap saddles are clean and dry, install the rod bearings to the rod and cap and coat the exposed bearing surfaces with oil (I used [...]
The side relief design provides additional clearance for the crank’s reluctor wheel. Without this added clearance, No. 8 piston would hit the reluctor wheel. Here’s an underside view that clearly illustrates the side relief/short pin design. Naturally, this also reduces reciprocating weight as a bonus. As you can see, the compression height resulted in the [...]
Dart 11-Degree Big Chief Cylinder Head Specs P/N………………………18500000 Material…………………355T6 aluminum alloy Comb. Chambers……….56cc (70cc also available) Intake valve dia…………2.470″ Intake port dim. …………1.815″ x 2.725″ w/3/4″ radius Intake port volume………FP CNC – 497cc Intake port location……..Raised 1.500″ spread ports Exhaust valve dia………1.800″ Exhaust port volume……185cc Exhaust port dim………..2.020″w x 1.780″h Exhaust port location……angled & raised [...]
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