Rebuilt Chrysler FirePower Hemi & 700R4 Transmission
Turn key, ready to drop in and go, fully rebuilt Chrysler Hemi and 700R4 transmission. It has 30 minutes of run time on it to break in the camshaft. It’ll be on the run stand for a few more weeks if you want to hear it in person.
331ci Chrysler Hemi was the core for the rebuild. The block was no good so a good 301ci Poly block was used. That was bored .125 over for a total of 320ci. Have all the paperwork for engine machine work and parts. No paperwork for the transmission rebuild. Engine machine work and assembly was done in 2003. Engine was first fired and broken in on 11-21-2025. The valve covers are older chrome. Light scratches on them, some surface rust and a few bigger scratches as shown. Two of the spark plug tube boots are split.
Block:
Block was align honed and resurfaced
Crankshaft shot blasted and turned .010/.010
Ross pistons 3.750 diameter
Connecting rods shot blasted and reconditioned
Sealed Power main, rod and cam bearings
Milodon oil pan
Hot Heads high volume oil pump
Heads:
331ci “Triple Nickel” Hemi heads rebuilt. Casting number 1556157
Hot Heads severe duty stainless steel valves with hardened tips
2” intake
1.75” exhaust
Rebuilt rocker shafts
Cam:
354ci Hemi cam reground by Comp Cams
Intake gross lift .424
Duration at .006 260
Lobe lift .2795
Lobe Separation 108
Intake:
Hot Heads 4 barrel intake
Holley Street Warrior 600cfm carb with electric choke
Hot Heads finned air cleaner
Ignition:
Mopar 340 distributor with Pertronix Ignitor conversion (no ignition box required)
Pertronix Flame Thrower coil
Taylor 8mm plug wires
Hot Heads distributor hold down
Exhaust:
Polished stainless steel headers 1 3/4” tubes, 2 1/2” collector, 3/8” thick flange
Misc Parts:
Hot Heads modified and remanufactured 340 harmonic balancer
Hot Heads crank pulley
Hot Heads low mount alternator bracket with GM 1 wire alternator
Hot Heads valley cover
Hot Heads timing cover
Hot Heads BBC water pump adapters
Hot Heads water crossover
Hot Heads rear water block off plates
Hot Heads vertical oil filter adapter
Polished aluminum big block Chevy water pump
4 Offenhauser polished aluminum valve cover breathers
Transmission:
Rebuilt 700R4
Hot Heads Hemi to GM transmission adapter
TV cable with carb bracket and geometry corrector
Steel dipstick tube with locking dipstick

















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