Talk:List of GM bellhousing patterns

BOP FWD pattern
The Eldorado and Toronado used the BOP V8 pattern when they had a longitudinal mounted V8, but the bellhousing was smaller, requiring a slightly smaller flexplate- at least in the 1977 and later models. I don't now if the 1967-1976 transaxle required the smaller flexplate.

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 * 6T70 Transmission.png
 * Atlas bell housing pattern.jpg
 * GM 4T45E Transmission with Ecotec bellhousing pattern.jpg