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

Contact us anytime 24-7

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Chevrolet Big Block


BIG BLOCK
INVERTED DOME (dished)
BIG BLOCK INVERTED DOME
These big block pistons are compatible with forced induction, nitrous and angle milled heads. T
he inverted dome shape has been designed for maximum efficiency and horsepower.
Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams.
Compression Height figured using 9.780 block height with zero deck clearance.
Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings.
Will fit both open and closed chamber cylinder heads.
Includes: Pin #990-2930-18-51S $18.01 (174g) Double spiro locks (#990-042-CS)








 Big Block Chevy Inverted Dome Series Std Bore: 427/454 = 4.250, 502 BBC = 4.466
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

110---118--124

Dome Vol.

Gram Wt.

Foot
note

Over
size

Recom. Ring Set
257942 $1,190.67

540

4.500

4.250

6.385

9.780

1.270

8.8

8.4

8.1

-20.0

569

B

0.034

J100F8-4500-5 $315.78
257951 $1,190.67

540

4.500

4.250

6.135

9.780

1.520

8.8

8.4

8.1

-20.0

626

0.034

J100F8-4500-5 $315.78
257953 $1,190.67

548

4.530

4.250

6.135

9.780

1.520

8.9

8.5

8.2

-20.0

632

M

0.064

J100F8-4530-5 $315.78
257943 $1,190.67

548

4.530

4.250

6.385

9.780

1.270

8.9

8.5

8.2

-20.0

580

B

0.064

J100F8-4530-5 $315.78
257944 $1,190.67

555

4.560

4.250

6.385

9.780

1.270

9.0

8.6

8.3

-20.0

597

B

0.094

J100S8-4560-5 $324.87
257954 $1,190.67

555

4.560

4.250

6.135

9.780

1.520

9.0

8.6

8.3

-20.0

647

M

0.094

J100S8-4560-5 $324.87
257955 $1,190.67

565

4.600

4.250

6.135

9.780

1.520

9.2

8.8

8.5

-20.0

662

0.134

J100L8-4600-5 $209.26
257945 $1,190.67

565

4.600

4.250

6.385

9.780

1.270

9.2

8.8

8.5

-20.0

608

B

0.134

J100L8-4600-5 $209.26
282058 $1,214.04

568

4.610

4.250

6.385

9.780

1.270

9.2

8.8

8.5

-20.0

615

B,M

0.144

J100H8-4610-5 $460.03
282059 $1,214.04

571

4.625

4.250

6.385

9.780

1.270

9.3

8.8

8.5

-20.0

620

B,M

0.159

J100F8-4625-5 $204.00
257946 $1,190.67

467

4.310

4.000

6.385

9.780

1.395

8.0

7.6

7.4

-14.5

582

B

0.060

J100F8-4310-5 $265.10
257947 $1,190.67

509

4.500

4.000

6.385

9.780

1.395

8.0

7.6

7.4

-28.0

591

B

0.034

J100F8-4500-5 $315.78
257956 $1,190.67

509

4.500

4.000

6.135

9.780

1.645

8.8

8.4

8.1

-11.5

661

0.034

J100F8-4500-5 $315.78
257948 $1,190.67

516

4.530

4.000

6.385

9.780

1.395

8.1

7.7

7.5

-28.0

600

B

0.064

J100F8-4530-5 $315.78
257957 $1,190.67

515

4.530

4.000

6.135

9.780

1.645

8.9

8.5

8.2

-11.5

674

0.064

J100F8-4530-5 $315.78
257949 $1,190.67

523

4.560

4.000

6.385

9.780

1.395

8.2

7.8

7.5

-28.0

610

B

0.094

J100S8-4560-5 $324.87
257950 $1,190.67

532

4.600

4.000

6.385

9.780

1.395

8.3

7.9

7.7

-28.0

625

B

0.134

J100L8-4600-5 $209.26
281922 $1,190.67

534

4.610

4.000

6.385

9.780

1.395

8.3

7.9

7.7

-28.0

633

B

0.144

J100H8-4610-5 $460.03
281923 $1,190.67

537

4.625

4.000

6.385

9.780

1.395

8.4

8.0

7.7

-28.0

634

B,M

0.159

J100F8-4625-5 $204.00

Foot Notes:
B Oil Rail Support is Included
M Made To Order

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