Slant SIx TTI Exhaust

Well, I am going to find out if by chance this fits the 170 as well. Got one flange bolt out but the other is being stubborn. Going to have to cut it. It's ok, because there is a broken bolt connecting the intake to exhaust so, while the car is down, I am going to pull the manifolds and fix that, too.

Looks like this 76 truck 225 head pipe is 3.5" across on the the bolt holes centers, for comparison.

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