Thread: swapin again...350 to 406....

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so messin with my 1980 L82 vette again...and i have a slightly built 350 in there now...but changing it to 406 im buildin now...and i was wonderin what kinda power i can expect and times...the combo is

509 400 (bored .30)
srp -22 dished forged pistons..(9:8:1)
scat 5.7 pro comp i beams..with 7/16 bolts...
and 9000 crank 3.75
heads are the afr 210 eliminators.. (race ready)
team g intake
comp cams XS290S
Advertised Intake Duration 290
Advertised Exhaust Duration 298
Intake Duration @.050" 252
Exhaust Duration @.050" 260
Intake Lift 540
Exhaust Lift 558
Lobe Separation 110°
eldebrock 800
1 7/8 hooker headers
with the side pipes (no mufflers gutted inside)
4 link with 12 bolt and 4:10
3500 fairbanks stall
the car weighs 3180 with me and almost a half tank of gas..
T350 trans
275 60 15 Et Street
all on pump gas 92 octane
and i still might put a 100 or 150 down it (i have the superpower shot still new layin around in the box)

If there is anything else needed to run my combo or even guess....any advice on this type of setup would be greatly appreciated...thanks

Holy bat dung Batman, where do you guys get these cam timing figures from? TOO MUCH CAM.

Here's a dyno combo from Air Flow Research that uses more static compression ratio than you are planning, but less cam and it makes sense. Call up AFR while you're ordering the heads and get the details on this build. By the way, have them drill for the steam holes before they ship them to you.

RPM Torque H.P.
2500 463 220
3000 468 267
3500 457 304
4000 465 354
4500 534 457
5000 540 514
5500 510 534
6000 483 551

Horsepower: 550 hp street motor
Engine: 406 SBC
Heads: AFR CNC Race Ready 210cc
Compression: 10.3:1
Carburetor: 750
Ignition: MSD HEI Billet, 36* timing
Cam: Lunati Hyd. Roller 232*/242*, 0.560"/0.570", 1.6 rockers
Exhaust: 1 3/4" headers
Fuel: 93 octane pump gas

I'm also bettin' that if you tightened up the squish to 0.035" to 0.040", you could run less octane than the 93.