Thread: 400/406 Builds
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Old 07-05-2020, 06:06 AM   #137
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Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,068
Re: 400/406 Builds

I have a uncut SBC 400 and I think its an 811 block, 2 bolt main anyway. All that is going to be used from the engine is the block and crankshaft. The block will be milled .30 over so I guess will be a 406 when done. The engine is going to replace the 90,000 original mile 350 in my truck as its, well got 90,000 miles and its never been opened. I just want a streetable driver engine with some get up and go as compared to the 350 which still runs strong. Here is the parts list my friend who is building it suggested to use and I bought everything in the picture from Summit Racing.


Heads are Cast Iron and made by DART for Summit with a 72CC Combustion Chamber and 2.02 intakes and 1.60 exhaust valves with a 3 angle valve job and there are more specs in the link. Saving for these as of this writing.
https://www.summitracing.com/parts/sum-152123

Pistons are Speed-Pro Hypereutectic with a 3.75 inch stroke and 5.7 inch rod length.
https://www.summitracing.com/parts/slp-h615cp30

Connecting Rods are Scat Pro I-Beam and 5.7 inches
https://www.summitracing.com/parts/sca-25700716

Cam Shaft is a Lunati Voodoo with 256/262 Duration and 454/468 Lift and is a 1-5000 RPM cam which will be good for me.
https://www.summitracing.com/parts/lun-10120701

Lifters are Chevrolet Performance # 12371044
https://www.summitracing.com/parts/n...make/chevrolet

Rocker Arms are Summit Brand G6800
https://www.summitracing.com/parts/sum-g6800

Pushrods are Summit Brand G6400
https://www.summitracing.com/parts/sum-g6400

Intake Manifold is an Edelbrock Performer # 2101
https://www.summitracing.com/parts/edl-2101

Also going with original Rams head exhaust manifolds as I have 2 1/4 inch front to back true duals with H-Pipe on the truck now. Planning on using the factory Q-Jet that's on the truck and my friend who is going to do the build for me is going to tweak the Q-Jet too. The truck has 3:73 gears with an Eaton Tru-Trac and a 700R4 transmission.
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