S&S 4" Big Bore Kit — Made in the USA: low-friction cast-iron–lined cylinders, 10.5:1 pistons, Easy Start 585 cams, adjustable Quickee pushrods, hydraulic lifters, and TC3 oil pump/cam plate assembly. Bolt-on installation with no machining; compatible with stock heads. Increases displacement from 88 to 100 ci. Some compatibility restrictions apply.
Complete 4" big bore kit including S&S 10.5:1 pistons, S&S 585 Easy Start cams, S&S Quickee pushrods, and Premium hydraulic lifters, to fully capitalize on the larger displacement
S&S cylinders
2 S&S cylinders with 4.000" bore
Low-friction ductile iron liners
Simple bolt-on installation
No machining, balancing, or case splitting required
Compatible with stock heads
Increases displacement from 88 ci to 100 ci
Piston kit
Two 4.000" pistons for front and rear positions
Two 0.927" wrist pins
Four wrist pin clips, with installation tool included
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100" Power Package Engine Performance Kit
S&S 4" Big Bore Kit — Made in the USA: low-friction cast-iron–lined cylinders, 10.5:1 pistons, Easy Start 585 cams, adjustable Quickee pushrods, hydraulic lifters, and TC3 oil pump/cam plate assembly. Bolt-on installation with no machining; compatible with stock heads. Increases displacement from 88 to 100 ci. Some compatibility restrictions apply.
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S&S 4" Big Bore Kit — Made in the USA: low-friction cast-iron–lined cylinders, 10.5:1 pistons, Easy Start 585 cams, adjustable Quickee pushrods, hydraulic lifters, and TC3 oil pump/cam plate assembly. Bolt-on installation with no machining; compatible with stock heads. Increases displacement from 88 to 100 ci. Some compatibility restrictions apply.