Option reference

421 HO 421 High Output Tri-Power

performance · optional

Reference Details

Availability: optional
Category: performance
Code: 421 HO
Confidence: documented
Notes: 376-gross-hp configuration with specific camshaft, valve springs, exhaust, induction, and cooling equipment.

1 linked car page.

1966 Pontiac

254 2+2

Pontiac Motor Division, General Motors Corporation 1966 Pontiac Full-Size AMA Specifications

Pontiac Motor Division, General Motors Corporation 1966 Pontiac Performance Brochure

Pontiac Motor Division, General Motors Corporation 1966 Pontiac Regular Brochure