the engine crew on these boats knew how to crank up the boost and power i don,t think a single boat ran stock hp numbers these engines are awesome they were used in the unlimiteds for many years and can still be found tractor pulling they easily make 3000hp i always wondered why someone does not reproduce these for high perormance boats today these were high tech engines if you guys ever get to see inside some of ww2 engines especialy the german ones you would be amazed they were a work of art

Miss Packard
 

This 37' woody has a 1939 Packard M-2500 V-12.The craftsmanship it took to build this engine in the 1930's by hand with no CNC machines is unbelievable.I have two apart and they are very cool engines.

Wishbone rods they where made in 1939.

There beautiful thanks for posting and please post more..... not many know the amazing talent required to build engines back then ! i,m not impressed with penske,s ilmore turbo v6 indy engine but i am with how ww2 engines were designed(slide ruler) machined(no cnc)and hand assembled they had supercharging that was also turbo geared to the crank the exaust was directed thru the outside edge of the compressor wheel extracting power like the n1n2 sections in a turbine it added quite a bit to the hp of the engine they also had 4 valve heads and varible valve timing

show a pic of the rod pair together

The wishbone rod is used to shorten the engines over all length. This allows the piston bores on each bank to be straight across from the other side.

Wow! Thats thing is SICK!

:Score-101010:

i would love to see one of these engines taken apart.who ever designed it must have been a mad scientist.

The centrifugal blower is gear driven from the crank.

Beautiful work! why has no one reproduced this thing? 2 of these in a skater, mti or mystic would be pretty awesome! these are what gave the unlimiteds the nickname Thunderboats when these go by on boost the hair on your neck stands up! DWES you guys are doing a fantastic job please vid the fire up for us . i worked on a few unlimiteds that still ran these and never did understand the slinger spark to get them started ,will you guys still run the 70 weight oil or thinner?