Well my motot was out of a truck and their is not alot of clearance,but I got it off. I want to put a new chain and high pressure oil pump in it. The motor looked brand new, Not a speck of dirt,but I went ahead and put he new timing chain and oil pump in it, It had the hood bowed on the truck I took it out of and had rusted a hole in the valve cover. THEIR WAS NO WATER IN THE PAN,. I went ahead and took the heads off and checked all the valves. Their was one that had a real small speck in it and I replaced it. I have about 3-4 inches of clearance between the motor and firewall . Also I put a new GATES water pump on it and they make alot of different parts MADE IN AMERICA, . To bad about the firebird. . Is the 76 body the same as the 81?. I have 2-ta,s and 2 firebirds .From 75-78. When and if I live long enough. I,m gonna take the parts from one and make another. My sister bought the TA new and she couldn,t drive a old car on the salty road. She had to act like a big shot. When it started rusting--I tried to buy it from her but she wouldn,t sale it.Then when her and her boyfirend broke up and she had no place to put it and it had started rusting bad--she gave it to me. It does have good gear. I bought a 76 with a good body and hope to be able to swith out the part.It has no motor in it--just a roller.