Pistons

MANLEY PLATINUM SERIES LIGHTWEIGHT PISTONS

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Roundwire locks, tool steel wrist pins and pressure balance grooves are included with every set at no additional charge.

Note: Compression ratios for 4.6L are calculated at .008" deck clearance, a 8.933" deck height, and a .036" thick compressed head gasket.

    For quick reference on Combustion Chambers:
  • 42cc: 1999-2004 Mustang GT (PI)
  • 51cc: 1996-1998 Mustang GT (Non PI)
  • 52cc: 1996-2004 Mustang Cobra


Combustion Chamber
Part No.
Bore Size
Rod Length
Stroke
Compression Distance
42cc
51cc
52cc
Pistons Wt / Gms
Piston & Pin Wt / Gms
Ring Set
Flat Top for Stock Rod Length and Stroke
3.552"
5.933"
3.543"
1.220"
12.65
10.86
10.69
335
423
46600-8
3.572"
5.933"
3.543"
1.220"
12.78
10.97
10.80
345
433
46620-8
3.582"
5.933"
3.543"
1.220"
12.85
11.02
10.85
350
438
46630-8
Flat Top for Stroker Applications
3.552"
5.850"
3.750"
1.200"
13.33
11.43
11.26
350
438
46600-8
3.572"
5.850"
3.750"
1.200"
13.47
11.55
11.37
357
445
46620-8
3.582"
5.850"
3.750"
1.200"
13.54
11.61
11.43
360
448
46630-8
11cc Dish for Stock Rod Length and Stroke
3.552"
5.933"
3.543"
1.220"
10.53
9.29
9.18
335
423
46600-8
3.572"
5.933"
3.543"
1.220"
10.64
9.39
9.27
343
431
46620-8
3.582"
5.933"
3.543"
1.220"
10.69
9.43
9.31
347
435
46630-8
11cc Dish for Stroker Applications
3.552"
5.850"
3.750"
1.200"
11.09
9.78
9.65
346
434
46600-8
3.572"
5.850"
3.750"
1.200"
11.20
9.88
9.75
355
443
46620-8
3.582"
5.850"
3.750"
1.200"
11.25
9.92
9.80
358
446
46630-8
18cc Spherical Dish for Stock Rod Length and Stroke
3.552"
5.933"
3.543"
1.220"
9.54
8.53
8.44
384
472
46600-8
3.572"
5.933"
3.543"
1.220"
9.63
8.62
8.52
390
478
46620-8
3.582"
5.933"
3.543"
1.220"
9.68
8.66
8.56
393
481
46630-8
18cc Spherical Dish for Stroker Applications
3.552"
5.850"
3.750"
1.200"
10.04
8.97
8.87
372
460
46600-8
3.572"
5.850"
3.750"
1.200"
10.14
9.06
8.96
380
468
46620-8
3.582"
5.850"
3.750"
1.200"
10.19
9.11
9.00
383
471
46630-8
23cc Dish for Stock Rod Length and Stroke
3.552"
5.933"
3.543"
1.220"
8.95
8.07
7.98
351
439
46600-8
3.572"
5.933"
3.543"
1.220"
9.04
8.15
8.06
359
447
46620-8
3.582"
5.933"
3.543"
1.220"
9.08
8.19
8.10
363
451
46630-8
23cc Dish for Stroker Applications
3.552"
5.850"
3.750"
1.200"
9.41
8.48
8.39
336
424
46600-8
3.572"
5.850"
3.750"
1.200"
9.51
8.57
8.47
342
430
46620-8
3.582"
5.850"
3.750"
1.200"
9.55
8.61
8.52
346
434
46630-8
28cc Dish for Stroker Applications
3.552"
5.850"
3.750"
1.200"
8.87
8.05
7.97
341
429
46600-8
3.572"
5.850"
3.750"
1.200"
8.96
8.13
8.05
347
435
46620-8
3.582"
5.850"
3.750"
1.200"
9.00
8.17
8.09
351
439
46630-8



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