We can also look at the 69 HO and RAIII like this.
If the HO and RAIII were different, as in a huge difference, how many RAIII cars were mandated to have a close ratio transmission AND numerically higher 3.90-4.33 rear end? I believe the ONLY way you could order a RAI or II was with a close ratio trans AND 3.90 or 4.33 rear.
If you have a RAIII (which is not any different than a 68 or 69 HO/WQ block code) is there ANY proscribed mandates in the checklist availability stating that a RA III has to be ordered with a close ratio trans and a 3.90-4.33 rear? If not, the car is an HO with functional open air hood.
Sure one can say a 69 400 HO is a RAIII with RPO 611. But the engine is no different, is it? A RAIII is only a RA III because of sales nomenclature. There is no internal difference between a 68 HO, a 69 HO and a 69 RA III engine. The ONLY difference is the addition of RPO 611.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.
