Terry Zweifel's 1970 MGB with Ford 302 V8
(originally published in British V8 Newsletter, Volume 6 Issue 2)
By: Terry Zweifel
City: Santa Clara, CA
Model: 1970 MG MGB
Engine: Ford 302 V8
How It Was Done
|Engine:||1970 Ford 210hp 302 cid Mustang engine.
500cfm Holley, substituted with the stock Ford 290cfm carburetor for California bi-annual
smog check. I did a smog check with the Holley and found virtually no difference in "real
|Transmission:||Ford "Top Loader" 4-speed, wide-ratio transmission from a Torino 390GT.
Small block input shaft.
Fairlane tailshaft housing with shift linkage 2" forward of Mustang housing: stock MG position.
|Bellhousing:||1970 Mustang modified with aluminum block mount for clutch slave cylinder.
|Clutch Slave:||1970 (?) MG Midget with 1" bore.
|Clutch:||1970 Ford Mustang.
|Flywheel:||1966 Ford Mustang.
|Exhaust:||stock cast iron exhaust manifolds so no body work modifications forward of the footwells were required.
|Rear End:||9" narrowed 3.00:1 unit from 1979 Cougar. Axle shafts redrilled to 4-bolt 4-1/2" circle.
Brackets for sway bar, axle wind up shock, and Panhard rod welded on.
|Body:||engine installed behind axle centerline. Stock sheet metal replaced with heavy gauge steel
and bead welded. 1/4" steel boxed sub-frame welded from front cross member back from foot wells.
|Suspension:||(front) standard MGB roadster springs with steel core MG V-8 bushings, 3/4" sway bar.
(rear) re-arched springs with 3/4" sway bar and gas charged tube shocks, axle wind-up shocks and snubber.
|Brakes:||(front) standard MGB disks.
(rear) Ford 10" drums with 29/32" bore cylinders and adjustable proportioning valve.
|Cooling:||early Mustang (Falcon, Cougar, Comet) 17" x 17" x 3-row radiator. MG crossmember modified to allow
lower radiator hose below steering rack. 16" puller fan, thermostat controlled.
|Exhaust:||dual 2" pipes to 24" torpedo glass-packs with single 3" collector.
|Tires/Wheels:||Continental 185HR/70 x 14 on Panasport 5.5 x 14 Minilite replicas.
|Instruments:||Sun V-8 tach, water gauge with real numbers.
|Performance:||0-60mph < 6 seconds.
|Conversion by:||me, myself, and I (with occasional help of wife's hand or foot.)
|Comments:||(1) this conversion requires MAJOR body sheet metal changes. THINK, make the commitment,
swallow hard and Do It Right! (2) Buy a complete donor car. Keep until patience of wife
and neighbors wears thin. (3) When in doubt, over engineer. (4) Take your time. If I had
to do it over again, I would spend (1) more money, (2) less time under the car, and (3)
more time in the car.
|Estimated cost:||$3000 excluding original car... plus about 10,000 hours!
|(full gas tank, no driver)||(with 200# driver)|
|Left Front||598#||Right Front||605#||Front||1203#||51%||Front||1283#||50%|
|Left Rear||571#||Right Rear||596#||Rear||1167#||49%||Rear||1287#||50%|