hey guys its ben a long time since ive ben on here i need some info on a on some hp rating on all the big blocks ,.. for some reson i cant remember were to find them at . please help me out

I don't know where they're posted, but if you just say which one you want, I'm sure one of us has it in a book somewhere.

well i remember their is a web site that has the codes and hp rating in their , but i cant remember witch one it is

For the high performance ones in the good years

426 Hemi 425 HP

440 Six Pack 390 HP

440 Magnum/Super Commando 375 HP

383 Magnum/Commando 335 HP


For the non High Performance ones I know the 440 TNT is 350 HP and the 383 4 barrel is 330 HP

Sorry dont remember the Max Wedges off hand but I think the 413 Max Wedge was 415 HP and the Stage III was 425 as well as the 426 Max Wedge.

Be careful what you read, i see misprints all the time.

here ya go

http://www.lhmopars.com/engines.htm

thanks alot guys , im buying a 72 440 running for really cheap and was just wondering the hp rating on it , but here is another Q for you guys did they have a steel crank 440 in 1972 ,(internaly balanced) because it has the small dampner on it . i havnt looked at the codes on the front of the block yet ill be doing that on friday

72 440 had a steel crank from the factory. The cast crank 440's started in 1973.

Sheldon

well [Edited by Moparts - Keep it clean] guys i picked up the motor today and its a 1973 413 does anyone know anything about them its a motorhome 413, ive got a set of 906 heads for it , but i wanna know some specs on the motor the front id block is j413 ht 10 10

I can tell you the Max Wedge hp ratings as I could tell you them in my sleep.

413 with 11.0 comp - 410 hp
413 with 13.5 comp - 420 hp

426 with 11.0 comp - 415 hp
426 with 13.5 comp - 425 hp

In 1964 the high comp Maxie was dropped to 12.5 comp and still had the 425 hp rating. All the stage I , II and III Maxies all had these same hp ratings. Ron

well i pulled the heads and they dont look anything like 11.1 pistons their more like a 8.5 piston to me , well for $200 this motor is ganna work really well . i pulled the heads and all the junk off of it and ill say the guy took really good care of the motor , so my 906 heads are going on it and a eddy rpm performer cam and a tm7 intake with a 850 bp holley we will see what happens. any one looking for some 413 heads and water pump for a motorhome i have them and they look like they were just rebuilt

well guys the motor has a 3 bolt cam in it and the cam looks like new, also it has dished pistons in it . one thing i did find out was that its an internal balanced forgde crank motor witch is a plus .anyone need some motorhome heads and waterpump setup . i have them and they look fresh

here are some pics of the motor now