SPArKy_Dave 8,828 Posted February 14, 2021 This is interesting... since they're basically the same transmission, I'd guess they can be built for x-series too? https://www.hemiperformance.com.au/shop/reconditioned-hp-powermaxx-borg-warner-35-bw35-max-stall-converter-gearbox-package-race-spec-400-hp.html Share this post Link to post Share on other sites
deankxf 20,231 Posted February 14, 2021 would have been interesting for My Dads Leyland V8 in transit van.. but he never would have spent $4000 odd. (modified his bell housing to accept a $150 used C10) 1 SPArKy_Dave reacted to this Share this post Link to post Share on other sites
SPArKy_Dave 8,828 Posted February 15, 2021 14 hours ago, deankdx said: would have been interesting for My Dads Leyland V8 in transit van.. but he never would have spent $4000 odd. (modified his bell housing to accept a $150 used C10) The clutch-pack size/diameter will always be the limiting factor, but... among other things, to up their power handling - use the BW51 3bolt rear servo assy, (either in a BW51 case, or modify an earlier case) fit the wider bands, Fit a lighter check valve spring to the front servo, to allow faster apply/release, fit heavier springs in the primary/secondary regulator valves to up the line/clamping pressure, and if you're really keen, reinforce the case around the bell-housing attachment area. Plus use the earlier Ford F-type fluid, as it should increase the friction/clamping ability of the clutches. Merry Christmas Rear servo Front servo spring Front Servo Primary/Secondary Regulator Valve (line pressure) springs Share this post Link to post Share on other sites
slydog 7,873 Posted February 15, 2021 My 850hp rated C4 uses BW clutches x5 and the bands from memory. 2 1 gregaust, SPArKy_Dave and deankxf reacted to this Share this post Link to post Share on other sites