Thread: 400/406 Builds
View Single Post
Old 02-25-2014, 12:15 PM   #59
burnin oil
Registered User
 
Join Date: Jan 2013
Location: Eastern TN
Posts: 1,921
Re: 400/406 Builds

Quote:
Originally Posted by 63chevyll View Post
i love the 400, 406, 408 combos

over the years ive done a few and everyone was a good solid runner.

a 64 CC Camel Hump headed 406 was prob one of my favorits.

As far as the edelbrock 400 cam, i wasnt too im pressed at 6000 feet, but it did well for a street truck

77 Chevy 2wd, TH350, ?? converter, 3.07 gear, open diff,

406
Stock replacment 400 .030 over pistons
Edelbrock cam and Lifter kit
milled 64 cc Accessory hole heads
Old, bigger runner Edelbrock performer intake
1406 Carb

ran 15:20s in AZ with balt tires,

I put togethger a TBI 406, vortec headed engine for a 91 blazer about 10 years ago. We were lacking the correct ECU/PROM tune so it never ran at full potential.

We did a Votrec headed 406 in a 76 chevy K10 that got close to 17 MPGs

Currently, im daily driving (about 4 days a week) a non steem holls, cheap ass 882 headed, angle milled, cheap summit 1106 cam, knock off no name ebay high rise intake i had to grind and file and mill to seal, flat tops, 11.5:1 SCR on 91 octane, 34 total timing and runs damn good and cool with an OE radiator in my 68 C10 4 speed truck.

Also ive put steam hole heads on and off many 327s/350s/400swith no issues, I drilled steam holes in other heads just to try it, no leaks.

Next up is a 4.00 stroke, 400 Main, 2.000 rod crank for a splayed .040 509 block for my 63 Chevy ll 2 door

needless to say i love the 400, great power and performance....like the rest of the SB chevy family. maybe they all dont overheat after all.
My stock 3 core runs warm sometimes with the 270 duration cam. Not to bad but maybe 15-20* hotter than my Lunati 703 cam (modern version of a 350hp 327 grind). I do have the steam holes. Just curious but what rear are you running? GMs position is a constant 3500 RPM and above does not need steam holes. I got that from an old chevy power book I picked up at a dealer 20 years ago. My trucks runs a 4.10 gear. I need to swap the fan for a clutched unit that should pull a few more CFMs and free up a few ponies.
burnin oil is offline   Reply With Quote