Pistons

We carry what is quite possibly the world's largest selection of IN STOCK big block Mopar stroker pistons under one roof! Listed below on this page is over 68 different applications of dished, flattop and domed pistons for nearly every possible combination you can get out of a big block Mopar!!

 

Platinum Series Pistons:

Our premium forged Platinum Series pistons are made from the same aerospace quality 2618 T-6 aluminum billet as the high dollar name brands. They have incredible strength without sacrificing light weight. Our factory is fully ISO9002 and QS9000 registered, to ensure the highest standards of quality, and they're American Made from start to finish! Forged in America, 100% CNC machined in America. They feature drilled oil returns, tight quench, reinforcement ribs on the underside of the forgings, and diamond finished skirts to tolerances of +/-.00025" (two and a half ten-thousandths of an inch!) If you haven't tried our Platinum pistons yet, you'll wonder why you've been wasting hundreds of extra dollars on "brand name" pistons, made from the same exact aluminum alloy, and with nearly identical CNC machining! Give 'em a try and you'll be very impressed with the quality. They have all the features you'd expect from the usual high dollar name brands, except the high price tag!

All pistons use 1/16, 1/16, 3/16 ring pack for less frictional loss, and weight saving .990 pins, full floating and held securely in place with included SpiroLox. All include matching chrome moly heat treated, centerless ground pins. Many applications are available in Flattop, Dish or (coming soon) Domed for nearly any compression ratio, and at most all common bore sizes. Now available for an almost unbelievably low price! We figure the ratios below with a standard .039" head gasket, which is the thickness of Felpro's popular #1009 Chrysler big block head gasket. All our pistons use the lighter and stronger .990" pins and 1/16, 1/16, 3/16 ring grooves. Low tension or standard tension rings can be used. Valve reliefs are generally good for about a .700" lift cam.

All Platinum Series Forged American Made Lightweight Pistons are now on special for $599!!

Yes, we normally keep every single piston listed in this table below on the shelf and ready to ship! We now have our Platinum Series Domed pistons in stock and ready to ship for no extra cost!

Bore Size: Dish (-) or  Dome (+) CC's Compression Height: Distance Below Deck: 65CC 72CC 75CC 78CC 84CC 86CC 88CC Part#:

For STOCK STROKE 440 (3.750" stroke / 6.76" Rod)
4.350 (.030 over) -4 (FT) 2.067" -.018" 11.93 11.08 10.76 10.46 9.90 9.73 9.57 4000
4.360 (.040 over) -4 (FT) 2.067" -.018" 11.98 11.13 10.80 10.50 9.94 9.77 9.61 4010
4.375 (.055 over) -4 (FT) 2.067" -.018" 12.05 11.19 10.87 10.56 10.00 9.83 9.66 4020

For 440>>500 Stroker Kit: (4.150" stroke / 6.76" Rod)
4.350 (.030 over) -4 (FT) 1.867" -.018" 13.09 12.16 11.80 11.47 10.85 10.67 10.48 5093
4.360 (.040 over) -4 (FT) 1.867" -.018" 13.15 12.21 11.85 11.51 10.90 10.71 10.52 5094
4.375 (.055 over) -4 (FT) 1.867" -.018" 13.22 12.28 11.92 11.58 10.96 10.77 10.59 5095
4.380 (.060 over) -4 (FT) 1.867" -.018" 13.25 12.31 11.94 11.60 10.98 10.79 10.61 5096
4.350 (.030 over) -24 1.867" -.018" 10.80 10.18 9.94 9.71 9.28 9.14 9.01 5080
4.360 (.040 over) -24 1.867" -.018" 10.87 10.25 10.00 9.77 9.33 9.20 9.07 5085
4.375 (.055 over) -24 1.867" -.018" 10.91 9.28 10.04 9.80 9.37 9.23 9.10 5090
4.350 (.030 over) +14 1.867" -.018" 16.52 15.02 14.46 13.94 13.02 12.74 12.47 7050
4.375 (.055 over) +14 1.867" -.018" 16.69 15.17 14.60 14.08 13.15 12.87 12.60 7060

For 440>>512 Stroker Kit: (4.250" stroke / 7.100" Rod)
4.350 (.030 over) -17 1.480" -.015" 11.85 11.11 10.82 10.55 10.05 9.89 9.74 5060
4.375 (.055 over) -17 1.480" -.015" 11.97 11.22 10.93 10.66 10.15 9.99 9.84 5070
4.350 (.030 over) -4 (FT) 1.485" -.010" 13.68 12.68 12.30 11.94 11.29 11.09 10.89 5071
4.360 (.040 over) -4 (FT) 1.485" -.010" 13.75 12.74 12.36 12.00 11.34 11.14 10.94 5072
4.375 (.055 over) -4 (FT) 1.485" -.010" 13.82 12.81 12.42 12.06 11.40 11.12 11.00 5073
4.350 (.030 over) -27 1.485" -.010" 10.97 10.34 10.09 9.86 9.43 9.29 9.16 5074
4.360 (.040 over) -27 1.485" -.010" 11.01 10.38 10.13 9.90 9.46 9.33 9.20 5075
4.375 (.055 over) -27 1.485" -.010" 11.08 10.44 10.19 9.96 9.52 9.38 9.25 5076

For 440>>528 Stroker Kit: (4.375" stroke / 7.100" Rod)
4.350 (.030 over) -4 (FT) 1.423" -.009" 14.09 13.06 12.66 12.29 11.61 11.41 11.21 5033
4.360 (.040 over) -4 (FT) 1.423" -.009" 14.15 13.11 12.71 12.34 11.66 11.45 11.25 5034
4.375 (.055 over) -4 (FT) 1.423" -.009" 14.24 13.19 12.79 12.42 11.73 11.52 11.32 5035
4.350 (.030 over) -30 1.423" -.009" 10.97 10.35 10.11 9.89 9.46 9.33 9.20 5036
4.360 (.040 over) -30 1.423" -.009" 11.01 10.40 10.15 9.93 9.50 9.37 9.24 5037
4.375 (.055 over) -30 1.423" -.009" 11.08 10.46 10.22 9.98 9.56 9.42 9.29 5038

For 440>>543 Stroker Kit: (4.500" stroke / 7.100" Rod)
4.350 (.030 over) -27 1.355" -.015" 11.40 10.75 10.50 10.26 9.81 9.67 9.54 5000
4.375 (.055 over) -24 1.320" -.050" 10.98 10.39 10.16 9.94 9.53 9.40 9.27 5057
4.380 (.060 over) -24 1.320" -.050" 11.00 10.41 10.18 9.96 9.54 9.41 9.29 5058
4.375 (.055 over) -4 (FT) 1.320" -.050" 13.11 12.25 11.92 11.61 11.03 10.85 10.68 5055
4.380 (.060 over) -4 (FT) 1.320" -.050" 13.14 12.28 11.94 11.63 11.05 10.87 10.70 5056
4.375 (.055 over) +14 1.320" -.050" 16.18 14.85 14.35 13.89 13.04 12.79 12.54 7000

For 400>>512 Stroker Kit: (4.250" stroke / 6.535" Rod)
4.375 (.035 over) -4 (FT) 1.320" -.000" 14.22 13.15 12.74 12.36 11.66 11.45 11.25 5055
4.380 (.040 over) -4 (FT) 1.320" -.000" 14.25 13.18 12.77 12.38 11.69 11.47 11.27 5056
4.375 (.035 over) -24 1.320" -.000" 11.61 10.90 10.63 10.37 9.89 9.75 9.60 5057
4.380 (.040 over) -24 1.320" -.000" 11.63 10.93 10.65 10.39 9.91 9.77 9.62 5058
4.375 (.035 over) +14 1.320" -.000" 18.24 16.46 15.80 15.20 14.13 13.81 13.50 7000

For 400>>500 Stroker Kit: (4.150" stroke / 6.76" Rod)
4.375 (.035 over) -4 (FT) 1.122" -.023" 13.05 12.13 11.78 11.45 10.84 10.66 10.48 6010
4.382 (.040 over) -4 (FT) 1.122" -.023" 13.09 12.17 11.82 11.48 10.88 10.69 10.51 6020
4.403 (.060 over) -4 (FT) 1.122" -.023" 13.20 12.27 11.91 11.58 10.97 10.78 10.59 6030
4.375 (.035 over) -24 1.122" -.023" 10.79 10.18 9.94 9.71 9.29 9.15 9.03 6000
4.382 (.040 over) -24 1.122" -.023" 10.82 10.20 9.97 9.74 9.31 9.18 9.05 6001
4.403 (.060 over) -24 1.122" -.023" 10.91 10.29 10.05 9.82 9.39 9.25 9.12 6002

For 400>>470 Stroker Kit: (3.915" stroke / 6.535" Rod)
4.350 (.010 over) -17 1.480" -.007" 11.21 10.49 10.22 9.96 9.48 9.33 9.19 5060
4.375 (.035 over) -17 1.480" -.007" 11.32 10.60 10.32 10.06 9.58 9.43 9.28 5070
4.350 (.010 over) -4 (FT) 1.485" -.002" 12.97 12.00 11.63 11.29 10.66 10.47 10.29 5071
4.360 (.020 over) -4 (FT) 1.485" -.002" 13.03 12.06 11.69 11.34 10.71 10.52 10.34 5072
4.375 (.035 over) -4 (FT) 1.485" -.002" 13.10 12.13 11.75 11.41 10.77 10.58 10.39 5073
4.350 (.010 over) -27 1.485" -.002" 10.36 9.75 9.52 9.30 8.89 8.76 8.63 5074
4.360 (.020 over) -27 1.485" -.002" 10.40 9.80 9.56 9.34 8.92 8.79 8.65 5075
4.375 (.035 over) -27 1.485" -.002" 10.46 9.86 9.62 9.39 8.98 8.85 8.72 5076

For 400>>451 Stroker Kit: (3.750" stroke / 6.76" Rod)
4.375 (.035 over) -4 (FT) 1.320" -.025" 11.82 11.00 10.69 10.39 9.85 9.69 9.52 5055
4.380 (.040 over) -4 (FT) 1.320" -.025" 11.85 11.03 10.71 10.41 9.87 9.71 9.54 5056
4.375 (.035 over) -24 1.320" -.025" 9.81 9.26 9.04 8.84 8.46 8.34 8.22 5057
4.380 (.040 over) -24 1.320" -.025" 9.83 9.28 9.06 8.85 8.47 8.35 8.24 5058
4.375 (.035 over) +14 1.320" -.025" 14.81 13.50 13.02 12.57 11.76 11.51 11.28 7000

For 383>>496 Stroker Kit: (4.250" stroke / 6.535" Rod)
4.280 (.030 over) -4 (FT) 1.320" -.000" 13.73 12.69 12.29 11.92 11.25 11.05 10.85 5040
4.310 (.060 over) -4 (FT) 1.320" -.000" 13.91 12.85 12.45 12.08 11.40 11.19 10.99 5050
4.280 (.030 over) -20 1.320" -.000" 11.58 10.85 10.57 10.30 9.81 9.66 9.51 5042
4.310 (.060 over) -20 1.320" -.000" 11.73 10.99 10.70 10.43 9.94 9.78 9.63 5052

For 383>>438 Stroker Kit: (3.750" stroke / 6.76" Rod)
4.280 (.030 over) -4 (FT) 1.320" -.025" 11.45 10.65 10.34 10.06 9.53 9.37 9.22 5040
4.310 (.060 over) -4 (FT) 1.320" -.025" 11.58 10.78 10.47 10.18 9.65 9.48 9.32 5050
4.280 (.030 over) -20 1.320" -.025" 9.79 9.22 9.00 8.78 8.39 8.27 8.15 5042
4.310 (.060 over) -20 1.320" -.025" 9.90 9.32 9.10 8.89 8.49 8.37 8.25 5052

 

Replacement Spirolox (pin locks)

Reusing old spirolox is not recommended. These are great for teardowns, replacement, etc. These fit ONLY the Platinum Series pistons listed above with .990 pin size. They are sold only in sets of 16 (enough for 1 complete engine.)  Normally kept in stock.

Part # Pin Size:
126-1000 .990"

 

 

ROSS Piston Accessories:

If your budget allows or your engine is going to exceed the horsepower rating of Ross's standard pins, pin upgrades are available. Don't forget to order pins for custom pistons as well. PLEASE NOTE: THESE PINS WORK ONLY WITH ROSS PISTONS, NOT OUR PLATINUM SERIES PISTONS.

Ross's super light high quality tool steel pins listed below are 20% stronger than the more common H-11 pins. Use these on naturally aspirated engines where every gram of weight is critical.

Diameter: Length: Wall Thickness: Gram Weight: Ross Part #: Cost:
1.094" 2.750" .120" 129 1094-12-27 $245
For comparison, a stock Chrysler 1.094" pin weighs in at a hefty 225 grams!

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