Ls1 vs truck TB?
08-20-2012, 10:07 AM
#5
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The cable TBs all use the same core casting. The PCV
and coolant fittings differ slightly, and the throttle cable
pulley is different profiles on different years (but roughly
the same draw-length to open - later years of F-body
had a more "Nautilus" type cam which makes you draw
more length initially - probably a fueleconomy trick.
The PCV fitting can be removed / swapped as can the
throttle shaft & pulley.
I did this all on my car, got a truck TB, ported it and
swapped the relevant fittings across (hacked off the
whole coolant boss and bypassed).
and coolant fittings differ slightly, and the throttle cable
pulley is different profiles on different years (but roughly
the same draw-length to open - later years of F-body
had a more "Nautilus" type cam which makes you draw
more length initially - probably a fueleconomy trick.
The PCV fitting can be removed / swapped as can the
throttle shaft & pulley.
I did this all on my car, got a truck TB, ported it and
swapped the relevant fittings across (hacked off the
whole coolant boss and bypassed).
