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Preston Larson's 1970 Formula 400
(In His own Words)

This is my (restored by me) Admiralty Blue 70 Formula 400, powered by a 72 455/463 with original T-400 transmission, Jim Hand converter and original 12-bolt rear with 3.42 gears, Eaton posi and Moser axles. The original #'s matching YS code 400 is tucked away for safe keeping. The engine sports a pair of Dave's 295cfm KRE heads, cnc'd iron intake and a Ruggles built 800cfm q-jet. The cam is SD's Old Faithful 236/245/112 using Scorpion 1.6 rockers. The exhaust leaves through a set of 1 3/4" Hooker Super Comps with a Pypes 3" x-pipe system. This sweet Firebird has never been to the track but is extremely lively!!! It is also a very nice mannered street machine. Thanks to Dave for all of his expert workmanship and advice!!!

 
   

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What's been going on at SD
05.05.14
We've made some changes over the last year or so. After a bunch of evaluation we came to the conclusion more >>
Spring 2013 is here!!!
03.06.13
Things are back on track in the shop and we're glad to see the economy seems to be picking up over spring more >>
What's been going on at SD
07.14.11
We'll to say things have been challanging since the landslide that took out our old shop in 09 would more >>

 

 

Engine Specs.
72 455 block +.035, 4.21 stroke.
Pistons: Ross forged with -20cc dish. I originally built it with iron heads.
Scat h-beam rods. Stock length. Balanced.
Melling 60psi oil pump. 3/4 length windage tray.

Heads: KRE 72cc d-ports 295cfm by Dave.
.040" Cometic MLS gaskets.
Compression ratio 10.5 to 1.

Intake: Iron intake with plenum and runners cnc'd by Dave.
800 cfm q-jet by Cliff Ruggles.

Cam: Old Faithful 236/245/112 with Scorpion 1.6 roller rockers.

Ignition: MSD ready to run distributor with MSD 6-AL. 30* total timing.