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Diamond Pistons

Ford Small Block
Street / Strip - Flat Top
Piston

• Designed to fit most Windsor style heads.
• “Shifted” valve pockets will accommodate valve spacing of most Windsor heads.
• Designed for forced induction or small nitrous applications. 2618 alloy.
• Ratios figured for “0” deck height.
• Standard 1/16” x 1/16” x 3/16” ring package.
• Premium 8620 pins included.
• Gasket Volume = 8.8cc’s.
• Top ring down dimension = .260”.
• Designed for 2.080 diameter intake valves and 1.600” exhaust valves.
• Valve relief depth = intake .300” & exhaust = .234”.
• Some items are non-stock parts, made to order as necessary. See the shopping cart for availability.

302 Block - 8.190" Deck Height
Part #
Bore
Stroke
Rod
C. D.
Wt
Pin
CC's
Comp Ratio
Purchase Online
58cc 62cc 66cc
9.6
9.7
9.7
9.8
9.8

9.2
9.2
9.2
9.3
9.4

8.8
8.8
8.8
8.9
9.0
31001
$637
4.030
4.035
4.040
4.060
4.125
3.000
5.090
1.600
480
481
483
-
-
.912
-6.0
31006*
$665
4.030
4.035
4.040
4.060
4.125
3.250
5.400
1.165
417
418
420
-
-
.927
-6.0
10.3
10.4
10.4
10.5
10.6

9.9
9.8
9.9
10.0
10.1

9.4
9.4
9.5
9.5
9.6
31011*
$665
4.030
4.035
4.040
4.060
4.125
3.400
5.400
1.090
400
402
405
-
-
.927
-6.0
10.8
10.8
10.8
10.9
11.0

10.3
10.3
10.3
10.4
10.5

9.8
9.8
9.9
9.9
10.0

 

 

351 Windsor Block - 9.470" Deck Height
Part #
Bore
Stroke
Rod
C. D.
Wt
Pin
CC's
Comp Ratio
Purchase Online
58cc 62cc 66cc
11.1
11.1
11.1
11.2
11.3
10.5
10.6
10.6
10.7
10.8
10.1
10.1
10.1
10.2
10.3
31016
$637
4.030
4.035
4.040
4.060
4.125
3.500
5.956
1.764
506
507
510
-
-
.912
-6.0
31021
$637
4.030
4.035
4.040
4.060
4.125
3.850
5.956
1.589
525
526
527
-
-
.927
-6.0
12.1
12.1
12.1
12.2
12.3
11.5
11.5
11.5
11.7
11.8
11.0
11.0
11.0
11.1
11.2
31026
$637
4.030
4.035
4.040
4.060
4.125
3.850
6.200
1.345

439
440
441
-
-

.927
-6.0
12.1
12.1
12.1
12.2
12.3
11.5
11.5
11.5
11.7
11.8

11.0
11.0
11.0
11.1
11.2

31031*
$637
4.030
4.035
4.040
4.060
4.125
4.000
6.200
1.270

423
425
428
-
-

.927
-6.0

12.5
12.5
12.6
12.7
12.8

11.9
11.9
12.0
12.1
12.2
11.4
11.4
11.4
11.5
11.6

 

351 Windsor Block 9.500" Deck Height
Part #
Bore
Stroke
Rod
C. D.
Wt
Pin
CC's
Comp Ratio
Purchase Online
58cc 62cc 66cc
12.5
12.5
12.6
12.7
12.8
11.9
11.9
12.0
12.1
12.2
11.4
11.4
11.4
11.5
11.6
31036
$637
4.030
4.035
4.040
4.060
4.125
4.000
6.200
1.295
-
.927
-6.0
31041*
$637
4.030
4.035
4.040
4.060
4.125
4.000
6.250
1.250
-
-
-
-
477
.927
-6.0
12.5
12.5
12.6
12.7
12.8

11.9
11.9
12.0
12.1
12.2

11.4
11.4
11.4
11.5
11.6

 

* Includes Oil ring support rails.

 
Call 1-877-354-3812
to order your Parts Today!

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About RPM Machine | Specials | Newsletter
RPM Machine-Performance Auto Parts
146 Ea 13065 So Suite F
Draper Utah 84020
We carry parts from scat, je, wiseco, ross, crower, callies, eagle, cat, eagle
Most of our rotating assemblies include forged pistons
and 4340 steelcranks


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