Thread: lets biuld a 406

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heres were i am at . fresh 406 with 388997 heads with mild port work, 9.5-1 compresion .i would like to see 425-450 hp with trq about the same, i am going to buy cam intake headers , carb etc ... , what do you recomend?. i wasthinking comp extreme energy 246, holly 750 hp, victor jr intake, 2000 stall ,what you think ?. motor will go in chev swb truck , fiberglass hood, bumpers etc.. maybe 3500 lbs ,373 gears. also have a small plate system i may use. thanks wayne

Is this a Ford engine? It's the only engine I know of that's 406 ci.

Originally Posted by 36tudoor

Is this a Ford engine? It's the only engine I know of that's 406 ci.

A 4.155 bore x 3.75 stroke small block Chevy.

997 heads were twins to the 993 heads with the exception of thin castings for the 997's. decent to work with as the 993's were consdered a counterpart tothe Brownfield's. 030 over bore gave it it's CID so what do you wish to do with this?

Originally Posted by hogwild

heres were i am at . fresh 406 with 388997 heads with mild port work, 9.5-1 compresion .i would like to see 425-450 hp with trq about the same, i am going to buy cam intake headers , carb etc ... , what do you recomend?. i wasthinking comp extreme energy 246, holly 750 hp, victor jr intake, 2000 stall ,what you think ?. motor will go in chev swb truck , fiberglass hood, bumpers etc.. maybe 3500 lbs ,373 gears. also have a small plate system i may use. thanks wayne

To hit the 425-450 area with what you have I think it will take a hyd. cam with at least 240 at .050 to get the job done.

Originally Posted by erik erikson

To hit the 425-450 area with what you have I think it will take a hyd. cam with at least 240 at .050 to get the job done.

Maybe around 550 lift Eric? He said maybe a nitrious motor,,,,street some? If not,maybe step up in converter stall for a drag truck.

Originally Posted by FAYLUR

Maybe around 550 lift Eric? He said maybe a nitrious motor,,,,street some? If not,maybe step up in converter stall for a drag truck.

Yes,with stock type heads .550 lift is a good number.
I would favor the exhaust by 10 degree's at .050 and have the cam cut on 112 L/S.

i want to use truck as one rank street truck that sits in garage most of the time. on saturday nite go out and beet up on ricers with my truck, also may go to 1/4 mile strip occasionaly. what about the combo i discribed? dont think i can go over 500 lift with the springs i have

Time for bigger springs.

Originally Posted by 36tudoor

Is this a Ford engine? It's the only engine I know of that's 406 ci.

If you have one of them around, let me know!!!!

Those heads are holding you back. A good flowing set of aluminum heads (AFR, Brodix, Dart) would easily get you 450 hp with a streetable hydraulic cam around .480 lift and 230 degrees @ .050 duration.

amen to that dave 406 3x2

Originally Posted by Dave Severson

If you have one of them around, let me know!!!!