ISKY Racing Cams.

The New Red Zone^TM Roller Lifters

RED ZONE^TM Roller Lifters feature the new Marathon^TM Roller Bearing -- the bearing that keeps on rolling longer! Marathon^TM bearings utilize a larger diameter pin and a shock absorbing, thicker outer race for higher fracture toughness! The resulting increased cross sectional area helps prevent premature bearing failures even under the sustained RPM red line abuse of professional endurance racing. In drag racing, Marathon^TM bearings withstand higher (up to 1/2 ton) spring loads, delivering over twice the number of runs between rebuilds!

Test Proven RED ZONE^TM Safe! Marathon^TM bearings routinely log back to back 1,000 racing mile endurance runs via the most rigorous, real-world test standard ever created, Spintron Test II. It's a no holds barred run as high as 9,000 RPM, where face ending competitive abuse is continuously revisisted!

Application	Part No.	Dia.	Body Type Pushrod	Isky Pushrod	Length	RevKit
SMALL BLOCK CHEVY V-8	272-RH	.842"	STEEL "B" (centerline)	203-HG (std. length)	7.781"	210-LRK 310-LRK

	372-LO180 (extra tall version to fit into both early and late bow-tie blocks with raised lifter bosses)	.842"	STEEL "A" (8-centerline) (4-.180" left offset) (4-.180" right offset)	203-HG (std. length)	7.781"	N/A

	372-LO180874 (extra tall version to fit into both early and late bow-tie blocks with raised lifter bosses)	.874"	STEEL "A" (8-centerline) (4-.180" left offset) (4-.180" right offset)	203-HG (std. length)	7.781"	N/A

	1271-LSH	.842"	ALUMINUM TOP "C" (centerline)	1235-L	6.500"	200-LRK 300-LRK

	1271-LSH/874	.874"	ALUMINUM TOP "C" (centerline)	1235-L	6.500"	200-LRK 300-LRK

	1271-LO150	.842"	ALUMINUM TOP "C" (8-centerline) (4-.150" left offset) (4-.150" right offset)	1235-L	6.500"	150-LRK

	1271-LO150874	.874"	ALUMINUM TOP "C" (8-centerline) (4-.150" left offset) (4-.150" right offset)	1235-L	6.500"	150-LRK

BIG BLOCK CHEVY V-8	272-96-RH	.842"	STEEL "B" (centerline)	203-96 (std. length)	8.281"int. 9.250"ex.	N/A

	372-96-RH (.350" taller than 272-96-RH to fit intobow-tie blocks with raised lifter bosses)	.842"	STEEL "B" (centerline)	203-96 (std. length)	8.281"int. 9.250"ex.	N/A

	372-96-LO180 (extra tall version to fit into both early and late bow-tie blocks with raised lifter bosses)	.842"	STEEL "A" (8-centerline) (4-.180" left offset) (4-.180" right offset)	203-96 (std. length)	8.281"int. 9.250"ex.	N/A

FORD V-8 351 SVO, 289/302 BOSS 302	3872-RH	.874"	STEEL "B" (centerline) lightweight version	--	Std. Length	N/A

	4372-RH	.874"	STEEL "B" (centerline)	--	Std. Length	N/A

BODY TYPE

ROLLER LIFTER INTERCHANGE CHART

NEW ISKY RED ZONE^TM ROLLER LIFTERS	ORIGINAL VERSION ISKY ENDURANCE PLUS ROLLER LIFTERS

272-RH	202-RH
272-96-RH	202-96-RH
372-LO180	202-LO180 & 302-LO180
372-LO180874	202-LO180874 & 302-LO180874
372-96-RH	302-96-RH
372-96-LO180	202-96-LO180 & 302-96-LO180
1271-LSH	1241-LSH
1271-LSH/874	1241-LSH/874
1271-LO150	1241-LO150
1271-LO150/874	1241-L0150/874
3872-RH	382-RH
4372-RH	432-RH

The New Red ZoneTM Roller Lifters

The New Red Zone^TM Roller Lifters