Thread: 400 sb info!!

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Originally posted by techinspector1
thanks Mike.

no problem, that 2000.00 is good for about .2 in a 3/8 mi. round track.

Originally posted by dr_bowtie
I would get it I really like the 400....I wouldn't worry about the short rods.....if you open the heads up they really shine....A rod that short realy needs a little larger head but no more than 180cc

What does rod length have to do with port volume?

There is a balance plate available that goes behind a standard 350 flywheel and smooths out a 400.

Originally posted by R Pope
There is a balance plate available that goes behind a standard 350 flywheel and smooths out a 400.

i've used one, but when i had my crankshaft checked for bal. he had to add a lot of weight to is.

Just make sure you have the block checked for cranks. 400's are more likely to crack than 350's, and there are inherent weak points. Just because it has low mile does not mean it is free from cracks. If it was me, I would take a risk and go for it.

Originally posted by erik erikson
What does rod length have to do with port volume?

http://www.stahlheaders.com/Lit_Rod%20Length.htm

http://victorylibrary.com/mopar/rod-tech-c.htm

Originally posted by techinspector1
http://www.stahlheaders.com/Lit_Rod%20Length.htm

http://victorylibrary.com/mopar/rod-tech-c.htm

Yes,I understand all that the short rod vs long rod theory.I just would rather see him go to a 5.7 rod or longer to get rid of the extra skirt wear caused by the 5.565 rod.I also would rather see him make a head decision based on having a better rod ratio.

i want to do a motor swap in my 91 camaro this winter, lookin for a nice amount of cubes and going for a forged piston for the bottle.... i have a 350 block with most internals bored 30 over, honed and everything...looks brand new..should i put it to use? also payin on a set of world product 202 heads with three angle valve job brand new never been fired on NICE $600....with that said can anybody help me out with a combo??

Originally posted by 91camaro
i want to do a motor swap in my 91 camaro this winter, lookin for a nice amount of cubes and going for a forged piston for the bottle.... i have a 350 block with most internals bored 30 over, honed and everything...looks brand new..should i put it to use? also payin on a set of world product 202 heads with three angle valve job brand new never been fired on NICE $600....with that said can anybody help me out with a combo??

What's the chamber size of the heads?
Street motor or what?
Pump gas or race gas?
Loose converter or stock?
Rear gear ratio?
Carb or EFI?
Iron heads?
Budget?

Go for the 400 you will love the extra torque over the 383.(no matter what Eric says)LOL

Originally posted by 75 TA
Go for the 400 you will love the extra torque over the 383.(no matter what Eric says)LOL

UMMMM,extra torque over the 383? it has the same stroke as the 400 which is 3.75.Oh,I get it.The extra torque must be found in the .125 larger bore.More rotating mass.L.O.L