Boss 429 Cylinder Head Straightening
John Edwards discusses how he uses a thermal cleaning oven to straighten
excessively warped aluminum cylinder heads at his Costa Mesa R&D Automotive
Dyno Results - 1970 DRAG PACK Cobra Torino 429 SCJ -Troy Stokes Owner Dyno Results - 1970
DRAG PACK Cobra Torino 429 SCJ - 11-01-2010
The goal was to see what kind of power a freshened bone stock 429 SCJ Drag
Pack motor made from the factory. All of the pieces of this engine are
either original equipment or factory correct replacements. Engine will be
returned to an 18,000 original mile factory drag pack Cobra Torino
currently undergoing a complete restoration for a Concours d'Elegance 1970
Cobra Drag Pack Torino by Glenn Vaughn Restoration in Post Falls, ID -
HP AVG: 4500-6300 = 474.2HP Peak = 493.6 @ 6000 rpm
Torque AVG: 464.2 FT-LBS Peak = 503 ft-lbs @ 4600 rpm
Special Thanks To:
Ed Nereaux Racing Engines - Post Falls, ID (208) 777-1085
HRD Cylinder Heads - Uncle "Al" Dickson (208) 762-9600
Ford 427 SOHC Cammer on dyno - 614 horsepower at 6500RPM
Original S.O.H.C. Cammer, built by Survival Motorsports, on the engine Dyno. This was with a
428 crank, Lemans rods, unported iron heads, a factory dual plane 2x4
intake and car, and LSM reproduction stock cams. Compression was dropped
to 10.8:1 for pump gas, but tests were run with turbo Blue 110 for safety's sake. Sorry about the
Peak power was 614 at 6500RPM, peak torque was 554 at 5200RPM.
Boss 429 (music deleted)
Boss 429 KK2062 re-posted without the music this time. 27,500 original
miles, numbers matching, probably the first '70 regular production Boss '9.
820T "left over" '69 motor. Rust free all original sheet metal restored
Boss 429 dyno blow up!
Boss 557 on Dyno when
everything goes wrong. Had to rush for Dyno time and did not have
billet flywheel. We used stock 429 flywheel. Made 6 runs, this was the
7th. 850 hp before the blow.