[Robert Swartz]

Straight out of the NHRA classification guide. Go to NHRA.com and this will be better presented. Look under Competition, Blueprint Specifications. Should be something here to get you started.



NHRA Technical Specifications
For
1972 Chrysler Corp. Motors

ROD
BORE STROKE DISPLACEMENT CYLINDERS LENGTH
3.390 2.530 91 4 4.966
3.030 3.390 97 4 6.051
3.406 3.640 198 6 6.700
3.406 4.126 225 6 6.700
3.910 3.313 318 8 6.123
4.040 3.313 340 8 6.123
4.000 3.580 360 8 6.123
4.340 3.380 400 8 6.358
4.320 3.750 440 8 6.770 4/29/2008


Issued: 25 Feb 1972
Revised: 4-2-76, 5-24-94, 2-16-96, 7-1-96, 2-16-98, 5-13-03


R.R.
HP Disp Mfg C.R. Ind. Make Model/Transmission Manifold Lifter Head cc Notes

55 91 P 9.40 1-1 Zeni 150 CDSET/ALL 1.50 M 13.3 A
70 91 P 9.40 2-1 Zeni 150 CDSET/ALL 1.50 M 13.3 A
80 97 P 9.03 1-2 MK DIDTA-14/AUTO 1.55 M 35.7 A
Carb sizes – 1260/1102
85 97 P 9.03 1-2 MK DIDTA-13/SM 1.55 M 35.7 A
Carb sizes – 1260/1102
100 198 DP 8.93 1-1 Holl 6363,6365/SM, 6364,6366/AUTO 2899959 1.50 M 54.0 B,1,6
Carb sizes – 1686/1313
110 225 DP 8.87 1-1 Holl 6153,6156/SM, 6154,6156/AUTO 2899959 1.50 M 54.0 B,1,6
Carb sizes – 1686/1313
150 318 DP 9.23 1-2 Cart BBD-6149,51/SM 6150,6152/AUTO 2951185,3698431 1.50 H 61.0 C
Carb sizes – 1437/1186
175 360 CDP 9.38 1-2 Holl 6162 or 6164/AUTO ONLY 3418435 1.50 H 64.7 D,5
Carb sizes – 1563/1410
190 400 DP 8.79 1-2 Cart BBD-6156/SM , 6154/AUTO 2951670 1.50 H 82.0 E,2
240 340 DP 9.32 1-4 Cart TQ-6138/SM, 6139/AUTO 3512100 1.50 H 64.7 D,3,7
Carb sizes – 1375x2250/1063xAV
245 440 CDP 8.76 1-4 Holl 6160-1A or 6290-1A/AUTO ONLY 3614014 1.50 H 82.0 E
Carb sizes – 1563x1563/1260x1313
255 400 DP 8.79 1-4 Cart TQ-6140,65/SM, 6090,6166/AUTO 3614046 1.50 H 82.0 E,8
Carb sizes – 1500x2250/1186xAV
265 400 DP 8.79 1-4 Cart TQ-6140,65/SM, 6090,6166/AUTO 3614046 1.50 H 82.0 E,4,8
Carb sizes – 1500x2250/1186xAV
280 440 DP 8.75 1-4 Holl 6252,6256/SM 6253,6257/AUTO 3614014 1.50 H 82.0 E
Carb sizes – 1563x1750/1260x1563
290 440 DP 8.75 1-4 Holl 6254/SM 6255/AUTO 3614014 1.50 H 82.0 E,4
Carb sizes – 1563x1750/1260x1563

C = Chrysler engines D = Dodge engines P = Plymouth engines
1 - Alt carbs - Holl 6260/ALL 2 - Alt carbs - Holl 6370/SM 6368/AUTO 3 - Alt carbs - Cart TQ-6394/ALL
4 - With fresh air package 5 - Alt manifold - 3698437,3698431
6 - Alt manifold - 3671619,3751630,3769979
7 - Alt manifold - 3614025,3671918,3698434,3830945,4095080,4100340,41 73915
8 - Alt manifold - 3698442,3830949

Cylinder Head Castings:
A = NONE B = 2843169, 3698447, 3614850, 3698995 C = 2843675, 3671585, 3769973, 4323302, 4448308, 4772576
D = 3418915, 4027596, 4071051, 3769974, 3671587, 4448308, 4772576
E = 3462346, 3751213, 3769902, 3769975, 4006452, 4120187, 4532287(SS ONLY)


Deck Piston
HP Disp Mfg Cl Type Height Vol Valves Cam Lift Gasket Springs

55 91 P .235 Flat 1430/1210 383/387 .020 Outer Only
70 91 P .235 Flat 1480/1210 443/443 .020 Outer & Inner
80 97 P .000 Dish .100 8.2 cc 1500/1224 395/395 .050 Outer Only
85 97 P .000 Dish .100 8.2 cc 1500/1224 395/395 .050 Outer Only
100 198 DP .075 Flat 1620/1360 410/419 .021 Outer Only
110 225 DP .140 Flat 1620/1360 410/419 .021 Outer Only
150 318 DP .056 Flat 1780/1500 390/420 .036 Outer Only
175 360 CDP .067 Flat 1880/1600 425/426 .046 Outer w Damp
190 400 DP .075 Flat 2080/1740 443/456 .020 Outer Only
240 340 DP .054 Flat w/n 1880/1600 462/473 .036 Outer w Damp
245 440 C .123 Flat 2080/1740 467/483 .019 Outer Only
245 440 DP .123 Flat 2080/1740 443/456 .019 Outer Only
255 400 DP .075 Flat 2080/1740 467/483 .020 Outer w Damp
265 400 DP .075 Flat 2080/1740 467/483 .020 Outer w Damp
280 440 DP .123 Flat 2080/1740 467/483 .019 Outer w Damp
290 440 DP .123 Flat 2080/1740 467/483 .019 Outer w Damp

Notes C = Chrysler engines D = Dodge engines P = Plymouth engines