1975 440

[mogydog]

is any 440 capable of being a hi performance engine? i know chev 350's have a 2 bolt main and a 4 bolt main engines and the 4 bolt is for hi performance, are any 440's like this? or any chrysler 440 can be built to blow you back in your seat? thanks for input!

 

[69hemibeep]

As far as I know the cast iron block is the same

 

[ACME A12]

any chrysler 440 can be built to blow you back in your seat?

ANY 440 can be built into a serious "Yee-Haw" producing ground-pounder...and it doesn't take much... :cheers:

:jester:

 

[Big John]

The Mopar Performance block has cross bolted mains, just like the Hemi... so yea, there's a 4 bolt main version available... but get your wallet out.

The real answer is this.... Unlike the SBC, you really don't need a 4 bolt main with a correctly built 440 ( or any other B or RB engine). The 440 block lower end is massive with the pan rails 3" lower then the crank center line, unlike the wimpy SBC. There's enough iron there to make it very, very strong.

There's a ton of cars out there going fast with 440 blocks pulled out of motor homes and New Yorkers.

Bolt a blower on with a ton of boost... or a killer NOS system... maybe.. just maybe, you'll want the cross bolt block, but really you can build a 440 with tons of torque that you can use to scare yourself without any "power adders".

 

[sixgunrunner68]

Right on Big!
The four bolt main sbc motors offer little to no advantage anyway imo and others. You'd be better off adding splayed mains if you're looking for a strength additive.

 

[ACME A12]

The four bolt main sbc motors offer little to no advantage anyway imo and others. You'd be better off adding splayed mains if you're looking for a strength additive.

That is what I have in the 'bu... :leave:

 

[sixgunrunner68]

The four bolt main sbc motors offer little to no advantage anyway imo and others. You'd be better off adding splayed mains if you're looking for a strength additive.

That is what I have in the 'bu... :leave:

:huh: Perhaps you'd care to elaborate Ray?

 

[ACME A12]

The four bolt main sbc motors offer little to no advantage anyway imo and others. You'd be better off adding splayed mains if you're looking for a strength additive.

That is what I have in the 'bu... :leave:

:huh: Perhaps you'd care to elaborate Ray?

It has splayed aftermarket main caps. There, I think we have sufficiently cover that topic...

 

[sixgunrunner68]

rly:
:basketcase:

 

[moparchris]

The general rule of thumb is 800 naturally aspirated horsepower for a stock 440 block. There has been plenty of discussion about which year is best but the facts support that the 70's motorhome stuff is just as tuff as a 67 hp block.

 

[ACME A12]

Thank you, Chris, for getting us back on topic. Marty is always dragging us off on some tangent... :basketcase:




:jester:

 

[sixgunrunner68]

Thank you, Chris, for getting us back on topic. Marty is always dragging us off on some tangent... :basketcase:




:jester:

:basketcase: Must be my a.d.d. acting up again.

 

[moparchris]

You guys are sooooo annoying. :toetap: