heads for a 1970 440

[gibbs6017]

 :wave:i have a 1970 challenger with a 440 i dont know what the motor came out of originaly but what i has woundering how can i find out what kind of heads to buy i have a cracked head and need some new ones i have bid on a set of 906 heads off of ebay will these work any help would be greatly appreciated

[MEK-Dangerfield]

I have 906 heads on my 440. 

  Mike

[360 'CUDA]

How would the Edelbrock aluminum heads be ? Do you need to modify or do they bolt on and run on the street with no problems?

[Killer_Mopar]

What head was originally on the engine? The 906s will work, but I recommend 452s because they have hardened seats, flow the same, and are usually cheaper. However, in either case they not be the correct head that the engine was designed for and the compression level might change. Look at the flat stamping pad on the front of the engine (above the timing cover) and that will tell the year of the 440. You can also read the casting date on the side of the block, but usually the exhaust is in the way.

[Chryco Psycho]

closed chamber 516 or 915 heads will bump the compression about a point if needed ,
 Eddy heads do NOT just bolt on , it took 6 months to sort out all the problems on my friend 440 & bolt them on