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A Regular Production Option (RPO) is a 3-digit standardized code used by General Motors to designate vehicle options & modifications. RPO codes designate how a vehicle is built, and they've been used on dealership order forms and in assembly plants since at least the 1950s ( see Corvette C1 ). It was originally all numeric and labeled Sales ...
An updated 4L60E, the 4L65E (RPO M32), was phased in the 2001 model year when coupled behind the 6.0 Vortec. Five-pinion front and rear planetaries, along with an additional 3/4 clutch allowing 7 clutches in the input housing and induction hardened input shaft assembly, were improved to withstand up to 380 ft⋅lb (520 N⋅m) of torque.
ZQ8 is an RPO code designation for the Chevrolet S-10, GMC Sonoma, and Chevrolet Colorado. Chevrolet S-10 and GMC Sonoma [ edit ] The ZQ8 option suspension package comes standard on the 1999-2003 S-10 Xtreme and 1996-1998 S-10 SS models, but was also available as a sports package on either the S-10 or GMC Sonoma.
The 6.6L RPO LML (VIN code "8") is the 2011–2016 version of the Isuzu/GM Duramax V8 diesel engine. It is a further advanced version of the LMM engine with the majority of the changes addressing a required drastic reduction in engine emissions.
RPO ZR2. Regular Production Option ZR2 is a special off-road/suspension package offered by General Motors on their mid-size pickup trucks and SUVs. It debuted in 1994 on the Chevrolet S-10 and the GMC Sonoma pickup trucks. The Sonoma ZR2 was known as ZR2 High-Rider. In 1996 it was expanded to the two-door Chevrolet Blazer and later offered on ...
The GM L3B engine is a turbocharged four-cylinder gasoline engine designed by General Motors. It is an undersquare aluminum DOHC inline-four displacing 2.7 liters (165 cid) and tuned for strong low-end torque. In addition to GM's active fuel management, start-stop system, and variable valve timing, which are already featured on GM's other full ...
When GM management eventually withdrew their support of the ban, Duntov and his colleagues created "RPO Z06" as a special performance equipment package for the Corvette. The Regular Production Option (RPO) was a GM internal ordering code designation. The package was specifically designed for competition-minded buyers, so they could order a race ...
From 1994 to 1996, the detuned 260 hp (190 kW) LT1 350 c.i. engine found on the fourth generation Chevrolet Corvette was a popular option on the 9C1 (the 4.3 V8 (RPO L99) being standard for police agencies looking for a more fuel efficient option), and standard equipment on other GM B/D-bodies at the time such as the Chevrolet Impala SS, Buick ...