C6 170 block rear flange pattern

[kukm66]

I am rying to confirm with pics whether the 1966 170 had the dual rear flange pattern. Does anyone have a 66 block that can check this. Need clear pics showing block number and rear pattern.

 

[CoupeBoy]

I don't know about the 170.. but my buddy's '66 200 is dual drilled.

-ron

 

[mach1 mark]

I understand that in 1966 the 170 was discontinued and it was replaced with the 200. However the 1966 200 block should be duel pattern.

 

[powerband]

I understand that in 1966 the 170 was discontinued and it was replaced with the 200. However the 1966 200 block should be duel pattern.

Great to see so many members having the same interest in making their Six car capable of modern driving with simple tranny and drivetrain mods.

Here's a reply to the same basic question :

I have a '71 Maverick C8 170 cid block with dual-drilled flange - (4 Main??)


Check out this C6xx engine that was in the '61 Comet:


C6DE 6015 H 200 Block:

C6 Head:

Rear of block shows only small 2.77 Bellhouse flange :

And here's the Dyno 200 C6DE 6015-B with the 3.03 bell: