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Gen II LT1 & LT4 Torque Specs Chart – Corvette, Camaro, Firebird, Impala SS, Fleetwood, Caprice & Roadmaster
Under-the-hood torque specs chart for 1992–1997 Gen II LT1 and...
2 min read
How to Clean Your Engine Compartment (Safely and Effectively)
Want to give your engine bay a showroom-worthy shine? Whether...
2 min read
detailing
Inside the 1984–1988 Corvette 4+3 Overdrive Transmission
Discover the inner workings of the C4 Corvette’s unique 4+3...
4 min read
4+3
Built to Last: Protecting Your Optispark from Premature Failure
Your Optispark distributor is built for longevity, but even the...
3 min read
engine maintenance
Optispark FAQ
The Petris Optispark, built by Throwback Automotive, is not a...
3 min read
Corvette parts
Optispark Troubleshooting
How do you know the Optispark is failing? Let’s envision...
11 min read
optispark