My 406
I have a 406 in my malibu now, one hell of a motor I might add! :lol:
My build list
4 bolt main 400 block (.030" over)
Scat 9000 Crank(wish I would have just bought a forged crank)..$700++!
Eagle 5.7" H-beam rods
Speed Pro Flat-top forged pistons/moly rings
SFI 18.1 Flexplate and Balancer
All Weight mached and dynamically balanced
Comp 292H cam
1990 LT1/L98 stock gm aluminum heads 1.94/1.5 swirl polished stainless valves/ 5 angle valve job, lightly milled, drilled for the steam holes....(might see some porting this summer....)
Full ARP stud kit, Heads and Mains/ if you plan on running aluminum heads I would suggest studs rather than the stock head bolts, same with the mains. Studs instead of reused stock bolts=peace of mind!
Cloyes double roller timing chain
1.6 Scorpion Full Roller Rockers
Holley 770 street avenger
World Products Crosswind intake (rip off of Performer RPM air-gap)
Ummmm.......
7 Qt. pan with a diamond tray, windage baffles etc...
Anyway, all this boils down to a tire smoking monster.... I have a 700R4 with a 2400 stall and a 3.73 posi-trac rear with 255/60's for now. I am waiting for my 12 bolt to come back from the shop, then I will have 3.55's and 10.5" MT ET streets. Hopefully the tires and 12 bolt with bring with them some much needed traction. In the 1/8 mile my 60ft times are in the 2.20-2.35 range and I am still running 8.70's
Only advice I have for you, building a 406, is save some money before you start. Do it right so you don't end up with another stroked 334..? disaster! I wish I would have put a forged crank in my motor but the guys at the machine shop had nothing but good things to say about the 9000 series scat cranks, and they have built a lot more motors than I ever will. I am going to estimate my motor somewhere around 400-425hp/450-475 ft. lbs. torque. If you plan on doing a motor build similar to mine plan on replacing your rear end with something like a 12 bolt (what I am doing) or a 9". The ole 7.5" in mine has laid down some one wheel wonders here lately, starting to think the clutches in it are headed south....? Also unless you want to put up some serious $$$ keep your RMPs under 6000. I shift mine at 5500, 5000, never have a WOT shift to 4th (don't need it). Once you add some decent power to a G-body you better plan on some chassis work to get that power to the tires. Good luck, we want to see some pics! If I could figure out how to post pics I could put up a couple albums with my motor and car....PM anyone?