Thread: sbc400 with a 144 blower

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crower 00981 works good on a small block 236/236 @050 114ls lift506/506

Originally Posted by pat mccarthy

crower 00981 works good on a small block 236/236 @050 114ls lift506/506

what is the power range

Originally Posted by young audio

what is the power range

2800to7000 or 00980. 2400to6500 5-10 lbs

I have used Crane part number 113821 with very good results.
Specs. are .458/.473 duration at .050 is 226/234 with 114 l/s.

thanks guys, what do you think if i tried a 350 over .40 (385) with the blower instead of the 406 or just a 383 or a 355 what do u think will be best 2 opperate with

Originally Posted by young audio

thanks guys, what do you think if i tried a 350 over .40 (385) with the blower instead of the 406 or just a 383 or a 355 what do u think will be best 2 opperate with

If you use the 350 block you would have a much better chance of not blowing head gaskets.
Look at a 350 and then look at a 400 block look at the area between the cylinders and then think of the boost you are wanting to add.

Originally Posted by erik erikson

If you use the 350 block you would have a much better chance of not blowing head gaskets.
Look at a 350 and then look at a 400 block look at the area between the cylinders and then think of the boost you are wanting to add.

yeah i see what you mean ima stick with the 350 and keep my fingers crossed

That poor little 144 will have a hellava time on a 400 and take everything it got for a 383. I have a 177 on a stroker 420 and it's way too small. I just bought a Procharger blow-through kit. It packs enough punch and I guess I'll see just what my 509 block can hold.

Originally Posted by camaro_fever68

That poor little 144 will have a hellava time on a 400 and take everything it got for a 383. I have a 177 on a stroker 420 and it's way too small. I just bought a Procharger blow-through kit. It packs enough punch and I guess I'll see just what my 509 block can hold.

hey i have a question, every tech i talk 2 says you shouldnt put the 144 on smaller motors such as 327,305,283but that i should use it on the bigger stroke motors such as the 350,400 but if you are suposed to do that how come every 1 on the internet keep sayin that the blower is 2 small. WHAT IS THE MOTOR IAM TOO USE IT ON THEN?????? ANY SUGGESTIONS?

Originally Posted by young audio

hey i have a question, every tech i talk 2 says you shouldnt put the 144 on smaller motors such as 327,305,283but that i should use it on the bigger stroke motors such as the 350,400 but if you are suposed to do that how come every 1 on the internet keep sayin that the blower is 2 small. WHAT IS THE MOTOR IAM TOO USE IT ON THEN?????? ANY SUGGESTIONS?

I use a 6-71 on the 350,383's and on some of the 454's.
If it is a hot 454 or a 496 I would run a 8-71.

the size of blower would have to do with you cr and what boost you want big blower will run cooler but take more power to run and a smaller well sealed blower with a bit more cr and less boost is a better way to go i think

Like Pat said a big blower will run cooler the reason being is you don't have to "spin it" so fast to do the same job as the smaller unit.
For every revolution a 6-71 blower will move 411 cubic inches of air.
An 8-71 will move 435 cubic inches of air.
The 8-71 is a little over 1 inch longer than the 6-71.

671 is 420 cid?

Originally Posted by pat mccarthy

671 is 420 cid?

I am not sure?
I have always gone by 6-71,8-71,10-71 etc.

well i see this as how good one is seal like a b.m or BDS if not and a old loose GMC then size would not help ?just eat up power ???just more mass??