Ford Modular Motors 4.6L Flat & Dish Top Pistons Includes: Pistons, Rings, Pins, Spiro Lox These pistons are an excellent value. Not only do they include a complete set of pistons but also a complete set of ROSS Racing Rings. Do NOT confuse these rings with cheap rebuild ring sets included with some other manufacturers piston kits. These ROSS flat top pistons are ideal for street/strip normally aspirated applications with small nitrous systems or no nitrous. Pins included are stock .866 (22mm) dia. and are 2500 long. Dish tops are machined on ROSS special forgings. These forgings provide heavy-duty strength with moderate weight, and are designed to stand up to the rigors of turbo-charged and blown applications. Pins included are .866 (22mm) dia. and are 3.552, stock stroke is 3.542, stock rod length is 5.933. Comp Ratio base on: .050 piston to head clearance (incl. deck & gasket) Block Height: 8.931 Forced Induction: Yes - Dish Top Only Nitrous: Yes - Dish Top Only Pins: .866 dia Ring Grooves: 1.5, 1.5, 3.0mm Tech Tip: Flat tops ideal for street/strip naturally aspirated apps.

Bore	STRK	Rod Length	Dish CC	Gram Weight	CR w/Head CC of:			Comp. Height	Part #	Price/Set
					52	53	55
3.552	3.542	5.933	-16	346	9.2	9.1	8.9	1.220	99805	$589
3.552	3.542	5.933	0	327	10.6	10.4	10.1	1.220	99804	$575
3.572	3.542	5.933	-16	354	9.3	9.2	9.1	1.220	99806	$589
3.572	3.542	5.933	0	332	10.7	10.5	10.2	1.220	99803	$575