Honestly...how good was the 318...mpg / durability / hp

YY1 said

I lost a buick 350 to timing gear failure as well.

My olds 425, OTOH, was a serious screamer, even in a 9,000 pound 1966 98..

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Those engines only came one way. High output. Kinda like the 403. Whether they were in the Trans Am or grandma's station wagon, the 403 was always hot. I had a friend whose parents had a Delta 88 more door with a 425. We got to cruise it every now and then. That thing would slap get it for a big car. We wasted almost every Rustang 5.0 we came across and usually with five or six of us in the car.