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Discussion Starter #1
406ci
Stock 400 block
Forged crank
200cc protopline heads
Cam?

Need atleast 800hp at wheel
 

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800 to the wheel on a stock 400 block will be nothing short of a timebomb. Honestly the heads are a little small too. That many cubes needs 215-220. You'd need the big turbine wheel s480. Prolly with the 1.32 housing.
 

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Discussion Starter #5
H beam rods
Blow thru carb
8.5/1 dish pistons


It will be going in our 1980 chevy luv truck that is street/strip it's going to be very street friendly as we drive it on the street more than we race it now. Mid to low nines at 3000lbs

We are building this motor for drag week so it's going to have to last lol

I was looking at 70-76mm, would this be ideal
 

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single 76 will break all the stock blocks yall can find!! its ideal!!:smt077:shock::smt033
 

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A good turbo engine will have a BSFC of about .55, so (HP x air-fuel x BSFC) / 60 should give you turbo flow in lb/min.

So (1000 x 11 x .55) / 60 = 100lb/min at an 11:1 a/f.

Something along the lines of a 75-80mm should do it, 70mm will be too small. Won't be as efficient.
 

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Custom Engine Shop
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H beam rods
Blow thru carb
8.5/1 dish pistons


It will be going in our 1980 chevy luv truck that is street/strip it's going to be very street friendly as we drive it on the street more than we race it now. Mid to low nines at 3000lbs

We are building this motor for drag week so it's going to have to last lol

I was looking at 70-76mm, would this be ideal
A large frame 75 would be very streetable and spool crazy fast but would be limited. Something like a BW 80mm 1.32 AR could help you exceed the times in your signature.

BW 80mm or Precision 80
JGS 50 or 60 mm Wastegate
JGS 60 BOV
EV Pro Bonnet
W/A intercooler
MSD 7531

BTW 80 would be the min size to support power a 91mm would be right at home.
BUT an 80mm will make enough power to move the bottom end around enough that the main caps will just fall off a stock block.
 

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Discussion Starter #9
Lol yeah I know stock blocks are junk but we got alot of them in the scrap pile... Trying to add a few more
 
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