RaceTec & AutoTec Pistons specializes in custom pistons for Sprint Cars, Dirt Modified & Dirt

	AutoTec Products
	Small Block Chevy
	LS1 LS2 LS6 Flattop
	LS1 LS2 LS6 Inverted Dome
	4.000 Bore SBC Flattop
	4.000 Bore Inverted Dome
	SBC 4.000 Bore Dome Top
	4.125 Bore Flattop
	4.125 Bore Inverted Dome
	4.125 Bore Dome Top
	Big Block Chevy
	Big Block Chevrolet Flat Top
	Big Block Chevrolet Inverted Dome
	Big Block Chevrolet Small Dome
	Small Block Ford
	302 Flat Top
	302 Inverted Dome
	302 FT & INV Dome Twisted Wedge
	302 4000 Dome
	351 Windsor
	351 Windsor Inverted Dome
	351 Windsor Dome
	351 Cleveland Flat Top & Inv Dome
	Big Block Ford
	460 Ford Flat Top & Inverted Dom
	Small Block Chrysler
	340 & 360 Flat Top
	340 & 360 Inv Dome
	Big Block Chrysler
	440 Flat Top
	Pontiac
	Small Block Pontiac Flattop
	Oldsmobile
	455 Oldsmobile Flattop

Big Block Chrysler 440 Flat Top

Pistons are manufactured on 4032 low expansion, high silicon material excellent for moderate turbo or supercharger applications.
CNC Precision machined ring grooves for 1/16, 1/16, 3/16 rings.
Top ring land gas distribution groove to enhance performance and improve ring seal.
1.094-2800-51-15C wrist pins (160 grams) or 990-2800-51-15C wrist pins (145 grams), pin fitting, wire locks, broached pin oilers and accumulator grooves are included.
Diamond turned skirts.
Forged side relief with external lightening cavities.

Cubic Inch	Bore Size	Over Size	Stroke	Rod Length	Comp. Height	72cc	78cc	88cc	Dome Volume	Gram Weight	Foot Notes	Piston Part Number	Street Ring Set
1.094 Diameter Wrist Pins. 1/16, 1/16, 3/16 Ring Grooves
446	4.350	0.030	3.750	6.760	2.070	11.8	11.1	10.1	-3	CALL	G	1000563
448	4.360	0.040	3.750	6.760	2.070	11.8	11.1	10.1	-3	CALL	G	1000564
451	4.375	0.055	3.750	6.760	2.070	11.9	11.2	10.2	-3	CALL	G	1000565
493	4.350	0.030	4.150	6.760	1.870	12.9	12.1	11.0	-3	CALL	G	1000566
496	4.360	0.040	4.150	6.760	1.870	13.0	12.2	11.1	-3	CALL	G	1000567
499	4.375	0.055	4.150	6.760	1.870	13.1	12.3	11.1	-3	CALL	G	1000568
.990 Diameter Wrist Pins. 1/16, 1/16, 3/16 Ring Grooves
505	4.350	0.030	4.250	7.100	1.480	13.2	12.4	11.3	-3	CALL	H	1000569
508	4.360	0.040	4.250	7.100	1.480	13.3	12.5	11.3	-3	CALL	H	1000570
511	4.375	0.055	4.250	7.100	1.480	13.3	12.5	11.4	-3	CALL	H	1000571
520	4.350	0.030	4.375	7.100	1.417	13.6	12.7	11.6	-3	CALL	H	1000572
523	4.360	0.040	4.375	7.100	1.417	13.6	12.8	11.6	-3	CALL	H	1000573
526	4.375	0.055	4.375	7.100	1.417	13.7	12.9	11.7	-3	CALL	H	1000574
535	4.350	0.030	4.500	7.100	1.355	13.9	13.1	11.9	-3	CALL	H	1000575
537	4.360	0.040	4.500	7.100	1.355	14.0	13.1	11.9	-3	CALL	H	1000576
541	4.375	0.055	4.500	7.100	1.355	14.1	13.2	12.0	-3	CALL	H	1000577