J.E. Pistons High Performance

Street Strip 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
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Call toll free to order at 1-866-700-5877 or
Contact us anytime 24-7 or use the Order Form for questions and to check stock.

Chevrolet
Small Block Forged Pistons & Rings

350 18º DOME











  • These pistons are perfect for your high-compression 17º/18º engine, with smooth flowing domes for optimum flame travel and angle milled head compatibility.
  • Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams.
  • Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings.
  • These pistons utilize dedicated left and right hand forgings.

Includes:
Pin #927-2750-15-51S $18.01 (130g)
Double spiro locks (#927-042-CS), unless noted
Double Pin Oilers
Contact Reduction Grooves
 350 Series Std Bore: 4.000 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
Comp Ratio
52---55--58

Dome Vol.

Gram Wt.

Foot
note

Over
size

Recom. Ring Set

181965 $1,190.67

357

4.030

3.500

6.000

9.000

1.250

13.6

13.0

12.4

3.0

462

A,M

0.030

J10008-4030-5 $213.11

Foot Notes:
A fits 3.480 and 3.500 stroke
M Made To Order

400 SMALL BLOCK 18º DOME










These pistons feature our newer dome profile to match a wider variety of 18º heads.

  • Designed to fit your high-compression, high horsepower 17º/18º dirt late model engine,
    these pistons have smooth flowing domes for optimum flame travel and angle milled head compatibility.
  • New valve reliefs will accommodate larger valves and long duration, tight lobe separation cams.
  • These pistons utilize dedicated left and right hand forgings and accept 1/16, 1/16, 3/16 rings.
  • Will not fit Brodix 18x cylinder heads.

Includes:
Pin #927-2750-15-51S $18.01 (130g)
Contact reduction grooves
Heavy Duty single .073 spiro lock (#927-073-AS)
Double pin oilers
 400 Series Std Bore: 4.125 Ring package designed for: 1/16, 1/16, 3/16 Rings\ 1.000" Compression height pistons not intended for nitrous use.

Part #
Your Cost

CID

Bore

Stroke

Rod Lgth.

Block Ht.

Comp. Ht.

Head Cubic Centimeters
Comp Ratio
52---55--58

Dome Vol.

Gram Wt.

Foot
note

Over
size

Recom. Ring Set

213103 $1,298.61

400

4.125

4.000

6.000

9.000

1.000

15.9

15.2

14.5

2.5

441

S,B

STD

J10008-4125-5 $250.76

213104 $1,190.67

429

4.130

4.000

6.000

9.000

1.000

15.9

15.2

14.5

2.5

440

S,B

0.005

J10008-4130-5 $250.76

213105 $1,298.61

430

4.135

4.000

6.000

9.000

1.000

15.9

15.2

14.5

2.5

434

S,B,M

0.010

J10008-4135-5 $250.76

213106 $1,298.61

432

4.145

4.000

6.000

9.000

1.000

16.0

15.3

14.6

2.5

443

S,B

0.020

J10008-4145-5 $250.76

213107 $1,136.14

434

4.155

4.000

6.000

9.000

1.000

16.0

15.3

14.6

2.5

445

S,B

0.030

J10008-4155-5 $250.76

213108 $1,136.14

434

4.165

4.000

6.000

9.000

1.000

16.1

15.4

14.7

2.5

450

S,B

0.040

J10008-4165-5 $250.76

213109 $1,190.67

414

4.125

3.875

6.000

9.000

1.062

15.4

14.7

14.1

2.5

450

S,B

STD

J10008-4125-5 $250.76

213110 $1,190.67

416

4.135

3.875

6.000

9.000

1.062

15.4

14.7

14.1

2.5

452

S,B

0.010

J10008-4135-5 $250.76

213111 $1,190.67

418

4.145

3.875

6.000

9.000

1.062

15.4

14.7

14.1

2.5

460

S,B

0.020

J10008-4145-5 $250.76

213112 $1,190.67

420

4.155

3.875

6.000

9.000

1.062

15.6

14.9

14.2

2.5

463

S,B

0.030

J10008-4155-5 $250.76

213113 $1,298.61

406

4.125

3.800

6.000

9.000

1.100

15.1

14.4

13.8

2.5

455

S,B,M

STD

J10008-4125-5 $250.76

213116 $1,298.61

410

4.145

3.800

6.000

9.000

1.100

15.1

14.4

13.8

2.5

466

S,B

0.020

J10008-4145-5 $250.76

213117 $1,298.61

412

4.155

3.800

6.000

9.000

1.100

15.3

14.6

14.0

2.5

470

S,B,M

0.030

J10008-4155-5 $250.76

213118 $1,190.67

401

4.125

3.750

6.000

9.000

1.125

14.9

14.3

13.7

2.5

463

S,B

STD

J10008-4125-5 $250.76

213119 $1,298.61

402

4.130

3.750

6.000

9.000

1.125

14.9

14.3

13.7

2.5

461

S,B,M

0.005

J10008-4130-5 $250.76

213120 $1,298.61

403

4.135

3.750

6.000

9.000

1.125

14.9

14.3

13.7

2.5

464

S,B

0.010

J10008-4135-5 $250.76

213121 $1,298.61

405

4.145

3.750

6.000

9.000

1.125

15.1

14.4

13.8

2.5

469

S,B

0.020

J10008-4145-5 $250.76

213122 $1,190.67

407

4.155

3.750

6.000

9.000

1.125

15.1

14.4

13.8

2.5

478

S,B

0.030

J10008-4155-5 $250.76

213123 $1,190.67

409

4.165

3.750

6.000

9.000

1.125

15.2

14.5

13.9

2.5

479

S,B

0.040

J10008-4165-5 $250.76

213124 $1,298.61

387

4.125

3.625

6.000

9.000

1.187

14.5

13.9

13.3

2.5

468

S,B,M

STD

J10008-4125-5 $250.76

213125 $1,298.61

388

4.130

3.625

6.000

9.000

1.187

14.5

13.9

13.3

2.5

470

S,B,M

0.005

J10008-4130-5 $250.76

213127 $1,298.61

374

4.125

3.500

6.000

9.000

1.250

14.3

13.6

13.1

3.5

487

S

STD

J10008-4125-5 $250.76

213128 $1,298.61

375

4.130

3.500

6.000

9.000

1.250

14.3

13.6

13.1

3.5

490

M,S

0.005

J10008-4130-5 $250.76

213129 $1,298.61

376

4.135

3.500

6.000

9.000

1.250

14.3

13.6

13.1

3.5

492

M,S

0.010

J10008-4135-5 $250.76

Foot Notes:
B Oil Rail Support is Included
M Made To Order
S Solid dome design

400 SMALL BLOCK GP (GAS PORTED) 18º DOME
The same design as the Small Block 18º dome pistons, but equipped with lateral gas ports and machined for our new Pro Steel rings with 1.2, 1.5, 3mm axial thickness and backcut radial widths.
Will not fit Brodix 18x cylinder heads.












Includes:
Pin #927-2750-15-51S $18.01 (130g)
Single Spiro locks #927-073-AS
Lateral Gas Ports
Double Pin Oilers

18º GP SERIES
Std Bore: 4.125
Ring package designed for: 1.2, 1.5 3MM Rings
1.000" Compression height pistons not intended for nitrous use.

Part #
Your Cost

CID

Bore

Stroke

Rod Lgth.

Block Ht.

Comp. Ht.

Head Cubic Centimeters
Comp Ratio
50---54--58

Dome Vol.

Gram Wt.

Foot
note

Over
size

Recom. Ring Set
218595 $1,298.61 428 4.125 4.000 6.000 9.000 1.000 15.9 15.2 14.5 2.5 444 S,B,M STD J75008-4125-5 $447.12
218594 $1,298.61 414 4.125 3.875 6.000 9.000 1.062 15.4 14.7 14.1 2.5 454 S,B STD J75008-4125-5 $447.12
218592 $1,298.61 406 4.125 3.800 6.000 9.000 1.100 15.1 14.5 13.8 2.5 464 S,B,M STD J75008-4125-5 $447.12
218593 $1,298.61 401 4.125 3.750 6.000 9.000 1.125 14.9 14.3 13.7 2.5 466 S,B,M STD J75008-4125-5 $447.12

Foot Notes:
B Oil Rail Support is Included
M Made To Order
S Solid dome design

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