What Corvettes have the Optispark?
What Corvettes have the Optispark?
GM’s OptiSpark is an optically triggered ignition distributor used on the LT1, LT4, and L99 (4.3L V-6) engines. It is mounted on the front of the engine, above the crank snout and behind the water pump.
What’s the difference between a Corvette LT1 and LT4?
The LT4 engine featured a number of enhancements over its LT1 counterpart. To start, the LT4 received newly designed aluminum heads that featured taller ports and bigger valves; 2.00-inch intakes and 1.55 inch exhaust. Each of these valves had hollow stems that were specially designed to save weight.
What was the engine change for the 1996 Corvette?
Beyond the engine, other revisions were made to the entire Corvette line for 1996. The standard four-speed automatic transmission received a number of minor revisions which resulted in better shift quality. Additionally, the introduction of new torque converters promised greater and prolonged durability.
When did the baby LT1 Corvette come out?
Although the LT1 was only around for five years, there were two-bolt and four-bolt blocks, aluminum and cast iron heads, regular and H.O. cams that came with long and short dowels, and three different front covers. There was also the “Baby LT1,” the 265 cid version that was the standard engine in the Caprice from 1994-’96.
What kind of engine did the 1992 Corvette have?
Thirty-seven years after the birth of the small block Chevy V8, the Generation II engine was introduced in the 1992 Corvette as the LT1. Although it shared many common dimensions, looked much the same and even had a few common parts, it was totally redesigned to provide more power with lower emissions and better fuel economy.
What kind of engine does a 1996 Corvette have?
The 1996 Grand Sport is the highest performance regular-production Corvette you can buy. It showcases the new 330-hp, LT4 V8 engines, F45 suspension with new Selective Real Time Damping, and Acceleration Slip Regulation (traction control).
Although the LT1 was only around for five years, there were two-bolt and four-bolt blocks, aluminum and cast iron heads, regular and H.O. cams that came with long and short dowels, and three different front covers. There was also the “Baby LT1,” the 265 cid version that was the standard engine in the Caprice from 1994-’96.
What was the last year of the C4 Corvette?
The 1996 Corvette was the final year of the C4. The 1996 introduced the new LT4 engine, with 330 horsepower, it was available only with the 6-speed manual transmission. The LT1 engine was limited to the automatic transmission.
What is the Opti Spark distributor on a corvette?
This new Opti-Spark distributor was supposed to be the greatest thing since GM did away with ignition points. Instead there was an internal mistake and the Opti-Spark caused Corvette owners a tremendous amount of aggravation. One of the goals was to control spark scatter during transient maneuvers, such as acceleration.
