Page 277 - 2022-23 Auto Performance Open Wheel Catalog

Power Pak 305 SB Chevy Powerpak Piston and Ring Kit
Mahle has redesigned the very successful 305 ci small block Chevy flat-top Powerpak piston assembly with shallower 3cc pockets for increased compression. Designed for racing classes requiring four-valve relief pistons. Made from forged high-silicone, low-expansion 4032 aluminum alloy. Pistons are hand deburred with radius valve pockets, forced pin oiling, performance-coated, Grafal skirt coating, high-quality German steel pins, reliable round wire locks, and lighter weight 0.043", 0.043", 3.0mm piston rings.
Part No. Bore CID Stroke Rod Length C/R 64cc
Gas Ported/Asymmetrical Valve Pockets
Power Pak Domed Piston Kits
Forged, domed pistons with radiused valve pockets are machined for 1.5mm top, 1.5mm second, and 3.0mm oil rings. Sets of eight include wrist pins, locks, and performance piston rings. Notes: In addition to the rod and stroke combinations listed with each part number, other rod/stroke combinations may work. Compression ratios are based on a 64cc combustion chamber.
MAH930204566
3.766"
310
3.480"
5.700"
9.5:1
MAH930204576
3.776"
312
3.480"
5.700"
9.6:1
MAH930204596
3.796"
315
3.480"
5.700"
9.7:1
MAH930205566
3.766"
310
3.480"
5.700"
9.7:1
MAH930205576
3.776"
312
3.480"
5.700"
9.8:1
MAH930205586
3.786"
313
3.480"
5.700"
9.8:1
MAH930205596
3.796"
315
3.480"
5.700"
9.9:1
Part No. Bore Stroke
Small Block Chevy
Plasma-Moly File-Fit Piston Ring Sets
Rod Length
Comp. Dome Comp. Height Volume Ratio
Plasma-Moly Standard-Gap Piston Ring Sets
Same quality as file-fit rings, but ready to install. Sets are only available with standard-tension oil rings.
MAH930207930
4.030"
3.48"/3.50"
6.000"
1.250"
11cc
13.0:1
MAH930208130
4.030"
3.48"/3.50"
6.125"
1.125"
11cc
13.0:1
MAH930207960
4.060"
3.48"/3.50"
6.000"
1.250"
11cc
13.0:1
MAH930212525
4.125"
3.750"
6.000"
1.125"
4cc
13.0:1
MAH930212555
4.155"
3.750"
6.000"
1.125"
4cc
13.0:1
MAH930212565
4.165"
3.48"/3.50"
6.125"
1.125"
4cc
12.3:1
MAH930208265
4.165"
3.750"
6.000"
1.125"
11cc
14.3:1
Mahle Original rings reduce friction,
increase power output, reduce oil con-
sumption, and last longer. File fit sets
include eight ductile iron plasma-moly
top rings, THG (tapered hook groove)
second compression rings, and CP-20
oil control rings. Ring sets include standard-tension oil rings unless specified.
Bore Top Second Oil Part No. Size Ring Ring Ring
Part No.
Bore Top Second Oil Size Ring Ring Ring
M77315-0036.030
4.030"
1/16"
1/16"
3/16"
M77315-0049.030*
4.030"
1/16"
1/16"
3mm (Low Tension)
M77315-0033.030
4.030"
1/16"
1/16"
1/8"
M77315-0036.040
4.040"
1/16"
1/16"
3/16"
M77315-0049.040 *
4.040"
1/16"
1/16"
3mm (Low Tension)
M77315-0005.005 *
4.000"
1/16"
1/16"
3/16" (Low Tension)
M77315-0036.025
4.020"
1/16"
1/16"
3/16"
M77315-0036.035
4.030"
1/16"
1/16"
3/16"
M77315-0005.035 *
4.030"
1/16"
1/16"
3/16" (Low Tension)
M77315-0034.045
4.040"
5/64"
5/64"
3/16"
M77315-0036.045
4.040"
1/16"
1/16"
3/16"
M77315-0005.045 *
4.040"
1/16"
1/16"
3/16" (Low Tension)
M77315-0036.065
4.060"
1/16"
1/16"
3/16"
M77315-0005.065 *
4.060"
1/16"
1/16"
3/16" (Low Tension)
M77315-0073.005 †
4.125"
1/16"
1/16"
3/16"
M77315-0032.005
4.125"
1/16"
1/16"
3/16"
M77315-0032.025
4.145"
1/16"
1/16"
3/16"
M77315-0004.035*
4.155"
1/16"
1/16"
3/16" (Low Tension)
M77315-0032.035
4.155"
1/16"
1/16"
3/16"
M77315-0032.045
4.165"
1/16"
1/16"
3/16"
* Reduced radial wall tension.
* Reduced radial wall tension
† Fire-Power ring set with PC479 top rings.
2022-23 PARTS AND ACCESSORIES
275
Tanner Thorson
Mike Reusche