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Thread: LT1 engine ?
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08-05-2019 12:42 PM #1
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- Car Year, Make, Model: 40 Ford Deluxe, 68 Corvette, 72&76 K30
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I think the 2 worst things about the LT1s of the 80s -90s were: The coolant system is reverse flow, and they use an opti spark unit instead of a distributor. The optispark is behind the water pump driven off the cam so when it fails it is real fun to replace.
Tuning used to be very limited for them too. For a street rod you wanted to drive and get great economy, they were awesome. But if performance is in mind, be prepared to spend some money and time waiting. They are good engines for the most part.
Ryan
1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
1971 Camaro RS 5.3 BTR Stage 3 cam, SuperT10
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08-05-2019 01:18 PM #2
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They run great but as said before, the Optispark ignition had its issues. Whoever decided that the distributor should be located close to water needed to have his head examined.1 Corinthians 1:27
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