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440 or 383 Build

  
Mopar Muscle
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440 or 383 Build

 
65 Coronet 65 Coronet
New User | Posts: 1 | Joined: 05/14
Posted: 05/08/14
07:34 PM

Was passed down my dad's 65 Coronet w/383 4-speed.  Looking to make about 500 hp.  What is the best way to go?  Rebuild the current 383 (which is stamped HP) or rebuild a 440 I have out of a 68 Plymouth?

Are Indy Racing heads the best route to go?  And is it necessary to go with a stroker kit to get to 500 hp?

New to the game, so I figured I'd ask the knowledge base here.  

IQ52 IQ52
Guru | Posts: 857 | Joined: 06/10
Posted: 05/09/14
07:39 PM

A 383 at 500 HP is 1.3 HP/CI, not an easy row to hoe. The 440 at 500 HP is 1.14 HP/CI, easier to do. For your 500 HP build the Indy heads are not required and the Edelbrock RPM or the 440 Source Stealth heads, properly prepared, will do fine. A stroker kit, though not required, would make a 500 HP goal very easy. More importantly, what is the budget you are working with?