  
1985-1997 LT1 / L98 / LT4 58mm, 1050 CFM throttle body. Arizona Speed & Marine has stepped up it’s 58 MM throttle valve by CNC machining from a solid block of billet aluminum. Several new features have been incorporated. These throttle bodies are direct bolt-on for the L-98 and LT-1 engines. Intake manifolds will require porting to match throttle body diameter.
Check out the following features:
1050 CFM air flow
Self lubricating replaceable bronze bushings, the shaft doesn’t wear against the housing
Centerless ground nickel plated throttle shaft
Precision CNC machined housing
Accepts stock TPS and IAC sensor, no wiring modification required
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