1966 – 1971 Diagnosis ENGINE HARD START OR WILL NOT RUN CONDITION
Disconnect any one spark plug lead and crank engine while holding end of lead approximately 1/4″ from ground. CAUTION: Do
January 17, 2026
Corvette Transistor Ignition Restoration Specialists
Expert repair and restoration of original GM/Delco K66 transistor ignition systems and tach‑drive distributors for 1962–1974 Corvettes.
Your One Stop T.I. Shop!
T.I Specialty offers original and upgraded transistor ignition components for Corvettes produced in the years 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971. The General Motors (Chevrolet Division) designation for the transistor ignition was option code K66.
T.I. Specialty also restores all tach drive distributors (T.I. and Points style) for the years 1962 thru 1974.
Remember, when you have problems with your Corvette Ignition, others will sell you parts, T.I. Specialty will offer you solutions.
Dave Fiedler
NCRS Member #18329
NCRS Member #18329
Restoration Services
Restoration
The tach drive distributors used in Corvettes are very unique and therefore require special restoration techniques in order to provide long service life and performance.
Consulting
T.I. Specialty is pleased to provide information pertaining to Corvette ignition systems. This includes the information given on this website as well as over the telephone. T.I. Specialty provides this service at No Charge.
Points Conversion
The conversion system, called "Breakerless SE Single Wire Ignition", replaces the original points with a fully integrated trigger assembly and power module that completely fits inside the distributor.
Tech Articles & Guides
Detailed technical articles explain how Corvette transistor ignition works, common failure points, and what a proper restoration should include.
1966 – 1971 Diagnosis ENGINE SURGE OR ERRATIC MISS CONDITION
When the above condition exists, unless the following checks are performed first, is likely that major components will be replaced
January 17, 2026
1962 – 1972 Tach Drive Distributor Restoration
1962 THROUGH 1972 TACH DRIVE DISTRIBUTOR RESTORATION This article covers both Transistor Ignition and points style Corvette distributors from 1962
January 16, 2026
1966 – 1971 Diagnosis – Breakerless Ignition System
To begin diagnosing your situation, identify and choose one of the following conditions: ENGINE SURGE OR ERRATIC MISS CONDITION ENGINE
January 16, 2026
1964 – 1965 Diagnosis ENGINE HARD START OR WILL NOT RUN CONDITION
Disconnect any one spark plug lead and crank engine while holding end of lead approximately 1/4″ from ground. CAUTION: Do
January 16, 2026
1964 – 1965 Diagnosis ENGINE SURGE OR ERRATIC MISS CONDITION
When the above condition exists, unless the following checks are performed first, is likely that major components will be replaced
January 16, 2026