Ok finally a new update. I just got my Barracuda back after having a not so local (way out in Modesto ca.)machine shop do a full rebuild on my worn 273.
I made some changes in the interest of drivablity and ease of maintenance for my dad who will end up with it when its all done. Instead of the higher compression 10.5:1 pistons that I thought might be a good upgrade, I went with stock 8.8:1 pistons and the shop decked the block for a super flat surface and higher compression . Ended up about 9.5:1 . I had them also install a cam with slightly bigger lift and duration so it'd sound a little loppy (i think I said that right lol). And of course new valves and seats that allow use of unleaded gas. They also installed my Edelbrock D4b intake and Carter afb 4 barrel carb. First the negatives, the Carter afb carb that I bought used didnt work and needed too much (full rebuild )to work properly so I just ordered a new Edelbrock 500cfm carb and had them install it. I then resold the Carter. Next the orange respray paint they did on the engine and valve covers isnt very good and ill have to redo it when I can (not really a big deal).
I didnt have a proper original style aircleaner for the new carb so I just had to get a too small cheap chrome one temporarily. I also dont like how the new carb looks so.....new ha ha.
Now the positives, it starts fast and easy, it sounds really great to me and thats with the stock restrictive exhaust manifolds still.
It feels much more responsive and keeps up easily with traffic around town and thats even with it not kicking down and shifting too early something ill get to next.
I made some changes in the interest of drivablity and ease of maintenance for my dad who will end up with it when its all done. Instead of the higher compression 10.5:1 pistons that I thought might be a good upgrade, I went with stock 8.8:1 pistons and the shop decked the block for a super flat surface and higher compression . Ended up about 9.5:1 . I had them also install a cam with slightly bigger lift and duration so it'd sound a little loppy (i think I said that right lol). And of course new valves and seats that allow use of unleaded gas. They also installed my Edelbrock D4b intake and Carter afb 4 barrel carb. First the negatives, the Carter afb carb that I bought used didnt work and needed too much (full rebuild )to work properly so I just ordered a new Edelbrock 500cfm carb and had them install it. I then resold the Carter. Next the orange respray paint they did on the engine and valve covers isnt very good and ill have to redo it when I can (not really a big deal).
I didnt have a proper original style aircleaner for the new carb so I just had to get a too small cheap chrome one temporarily. I also dont like how the new carb looks so.....new ha ha.
Now the positives, it starts fast and easy, it sounds really great to me and thats with the stock restrictive exhaust manifolds still.
It feels much more responsive and keeps up easily with traffic around town and thats even with it not kicking down and shifting too early something ill get to next.