SRP Pistons from J.E. Pontiac
Performance pistons & rings for street strip or race

RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655

1-801-754-5338 or Toll free 1-866-700-5877 Contact us anytime 24-7 Hours 9-5 Monday-Friday

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Call toll free to purchase at: 1-866-700-5877

Pontiac 400/428/455 Flat Top

4032 low expansion high silicon aluminum alloy heat treated to SRP specifications Forced Pin Oiler for increased wrist pin lubrication Pin fitting and double spiro locks included 980-2750-150 wall wrist pin (135g) included CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Seperately)

400 Flat Top Std Bore: 4.120 Ring package designed for: 1/16, 1/16, 3/16 Ring

Part # Your Cost	CID	Bore	Stroke	Rod Lgth.	Block Ht.	Comp. Ht.	Head Cubic Centimeters 72cc 80cc 84cc Compression Ratio			Dome Vol.	Gram Wt.	Foot note	Over size	Recom. Ring Set
196831 $801.96	461	4.155	4.250	6.800	10.210	1.285	11.9	11.0	10.6	-5cc	446	B,E	0.035	S100S8-4155-5 $155.95
196830 $801.96	468	4.185	4.250	6.800	10.210	1.285	12.1	11.1	10.7	-5cc	462	B,E	0.065	J100F8-4185-5 $261.11
151792 $755.22	458	4.160	4.210	6.625	10.210	1.480	11.8	10.9	10.5	-5cc	495	.	0.040	S100S8-4155-5 $155.95
153983 $830.62	407	4.160	3.750	6.625	10.190	1.690	10.9	10.3	9.4	-5cc	520	.	0.040	S100S8-4155-5 $155.95

428 Flat Top Std Bore: 4.120 Ring package designed for: 1/16, 1/16, 3/16 Rings

Part # Your Cost	CID	Bore	Stroke	Rod Lgth.	Block Ht.	Comp. Ht.	Head Cubic Centimeters 72cc 80cc 84cc Compression Ratio			Dome Vol.	Gram Wt.	Foot note	Over size	Recom. Ring Set
156431 $830.62	435	4.160	4.000	6.625	10.215	1.590	11.3	10.4	10.0	-5cc	515	M	0.040	S100S8-4155-5 $155.95
146508 $830.62	440	4.188	4.000	6.625	10.215	1.590	11.6	11.0	10.0	-5cc	519	.	0.068	J100F8-4185-5 $261.11

455 Flat Top Std Bore: 4.151 Ring package designed for: 1/16, 1/16, 3/16 Rings

Part # Your Cost	CID	Bore	Stroke	Rod Lgth.	Block Ht.	Comp. Ht.	Head Cubic Centimeters 72cc 80cc 84cc Compression Ratio			Dome Vol.	Gram Wt.	Foot note	Over size	Recom. Ring Set
196831 $801.96	461	4.155	4.250	6.800	10.210	1.285	11.9	11.0	10.6	-5cc	446	B,E	.004	S100S8-4155-5 $155.95
196830 $801.96	468	4.185	4.250	6.800	10.210	1.285	12.1	11.1	10.7	-5cc	462	B,E	.034	J100F8-4185-5 $261.11
151792 $755.22	458	4.160	4.210	6.625	10.210	1.480	11.8	10.9	10.5	-5cc	495	.	.009	S100S8-4155-5 $155.95
149721 $778.51	463	4.185	4.210	6.625	10.210	1.480	12.2	11.5	10.5	-5cc	501	.	0.034	J100F8-4185-5 $261.11

Footnotes:
A fits 3.480 and 3.500 stroke
B Oil Rail Support is Included
C .927 Pin Diameter
D .912 Pin Diameter
E .990 wrist pin
F Indicates 1.040 Pin Diameter
H Indicates 1.094 Pin Diameter
J Indicates 3mm Oil Ring
K .945 Pin Diameter
L Limited Quantities available
M Made To Order
P .975 Pin Diameter
S Solid dome design
W 428 Crank Shaft
X angle milled heads 

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