Join Date: Jan 2004
Location: Canuck stuck in Tucson, AZ.
Bronco Info: '79 Bronco Ranger XLT, lifted, locked, injected
The difference in cost between a 408M and a 408W is pretty huge. Basically, the heads on the Windsor block have to be replaced, which makes it far less affordable. Any Cleveland head is a far cry above and beyond in performance compared to a stock SBF piece. I built my 400M for less than $2K, that included new pistons, rings, valve job, bearings, cutting the crank down, ARP Wave-loc rod bolts, cam, double roller timing chain, oil pump, rockers, Glyptal, and long tube ceramic coated headers. The roller cammed 408W in my Mustang was a bit more $$$ and the heads were a sizable part of that cost.
Regarding fuel economy, I already ride a motorcycle to work everyday (50-60 mpg) and have a small 4 cylinder Jap car as well... the need to improve the fuel economy is driven by the cost of travel when going on adventures to Colorado for skiing, mountain biking, etc. in Bronco. Not my daily commute which often involves riding a mountain bike.
'79 Ford Bronco: 408M-C6-NP205 SEFI-EDIS8; 4" lift, Dana 44/Ford 9" w/4.10s, locked
'00 Mountaineer:5.0L-4R70W-3.73 gears, stock
'89 5.0L LX hatch: full 90mm Blowzilla blown Dart 304 w/Vic Jr heads + TMoss ported GT40 lower @ 8.4:1
'71 Mach 1: short deck girdled 408W w/stage 1 RHS 215 heads + Vic 5.8 EFI intake @ 10.3:1