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Anyone know the diameter, length, and tpi of the 4 bolts that attach the 89 throttle body to the plenum?
About two years ago I installed a Helix plenum spacer (waste of $$) and I'd like to take it out and restore the TB to stock form....but the stock bolts are miles away in NC!!
Midnight: Go to a Sears Hardware store and just buy the hex head metric bolts. Paint these dudes black and no one will see the difference. Use these until you get the originals from NC.
Thanks Sam Lam. Just got four from Home Depot. Total cost: $1.12.
Sounds like the dealership was really cutting me a deal!! For $16.00 they must sell "special horsepower" bolts to go along with my airfoil and throttle body spacer!!