Dyno Guesses & Bench Racing Forum - NASTY 402 build, HORSEPOWER guesses welcome !!!!!!!!!!!!!!!!!
06-06-2012, 12:48 PM
alright so im building a pretty stout 402, will be fully studded, pinned mains ect ect and im needing some guesses...it will be going through a stalled 60E unlocked.
brand new GM 6.0 block
diamond lateral gas ported pistons, with coatings, total seal rings
TEA trickflow 235s with titanium intake valves (with some hours put into them)
lunati linkbar lifters
yella terra rockers
custom cam 247/255 632/632 112+4 puts me right at 8.89 dynamic (perfect for pump gas)
12.4:1 compression ratio
Tony Mamo FAST 102/102 (portmatched to the heads)
06-06-2012, 01:04 PM
Right at 500 RWHP, but numbers are always just numbers!
06-06-2012, 01:14 PM
yeah, the car was a "stock internal" car trying to see how fast i could go....it made 324 to the tire and ran 11.08 at 119 MPH....im wondering what it will do after this :)
06-06-2012, 01:19 PM
There's an entire subforum just for this...
06-07-2012, 03:20 PM
I am right at 500rwhp with mine and it has TFS 225s, VR 90mm FAST, 11.2 CR, and MS3 cam, so you should be well above 500.
What was done to the cylinder heads? Did start with rough CNC castings & then finish?
06-09-2012, 12:34 PM
TEA did them, he said Brian tooley acctually did them back in the day when he worked there. Started with the TEA CNC 235, had everythin blended and massaged in certain spots, and the bowles were also fully blended smooth. Then addition of Titanium valves on the intake side and i think that is it
06-09-2012, 06:35 PM
My builds pretty similar to yours exept it's a 416. I'm hoping for 550 through a m6. Ls3 416,tea tfs 245,243 251 eps cam, fast 102/102, 11.3 comp. it's running but won't be dynoed till next month. Good luck on the build
My combination is a 416, cam is much smaller than either of your builds. Cylinder heads are TF 235's rough CNC castings.....then ported......
I'm looking for 550 as well, the OP should be in the same range I'm guessing......
Youse have some serious camshaft timing going on.
06-10-2012, 12:34 AM
08-08-2012, 09:11 AM
Can't wait to get ahold of it.
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