My new 277 - 02/28/08 10:08 PM
I previously posted about the art deco styled roadster I am building:
The T56 I had originally bought is gone and a T5 with a warranty has replaced it. The T5 is from a V8 car so it should handle the engine with no problem.
I FINALLY got the engine here. I had bought it from a man on Craigs list and a buddy picked it up and brought it to me. The story on the motor is that the man wanted a hot six for his 16 year old son's Nova. A engine builder in VA named Gilbert McDonald built a 250 truck engine with a steel crank for him. McDonald built a bunch of circle track versions of this engine and they dynoed at 325hp with a 2bbl carb. This engine has a LOT more head work than was allowed for the race engines and McDonald estimated 350-375hp.
It was bored to 277 CI, has forged TRW flat top pistons from a 307, was decked .100, has V8 valves, bored .125. It has a 600 lift cam and 11:1 compression, a Clifford aluminum 4bbl intake and Cliffort exhaust headers. Electronic ignition. All new parts in the engine. The engine was built in 84, run for two hours to break in and driven down the driveway and back. The kid said "But it's not a V8!" so the Dad parked the Nova (wonder what the kid drove...if he'd been mine he'd been on a bicycle)
The motor was filled with Marvel Mystery oil and left in the garage. Here it is:
We removed the water pump and alternator just to get them out of the way. As expected, the T5 bolted right up but I was surprised to learn that it is twisted to one side...
Once we pulled the manifolds we could see the extent of the head work. Here is the intake:
And exhaust:
The casting number on the head is 3824437 which should be a 230 head with 72.8ccs
I pulled the valve cover today and everything looks spic and span with not a spec of rust.
Btw, here is a photo of the motor mounts we fabbed up last weekend:
Obviously, I'm going to tear the engine down and look it over. While I'm in there I want to deal with the compression and cam lift. I've been told that the TRW pistons have LOTS of metal at the top and that I should have them relieved .100 (or ????) and rebalanced to get my compression back to pump gas....something around 9-9.5:1. Also planning on replacing the cam while I have the engine down. I think 600 lift in a 2000 lb car with a stick will make for a car that would be a real handful to drive without slipping the clutch a lot and probably not something my wife would be able to handle.
Thoughts, comments, suggestions?
The T56 I had originally bought is gone and a T5 with a warranty has replaced it. The T5 is from a V8 car so it should handle the engine with no problem.
I FINALLY got the engine here. I had bought it from a man on Craigs list and a buddy picked it up and brought it to me. The story on the motor is that the man wanted a hot six for his 16 year old son's Nova. A engine builder in VA named Gilbert McDonald built a 250 truck engine with a steel crank for him. McDonald built a bunch of circle track versions of this engine and they dynoed at 325hp with a 2bbl carb. This engine has a LOT more head work than was allowed for the race engines and McDonald estimated 350-375hp.
It was bored to 277 CI, has forged TRW flat top pistons from a 307, was decked .100, has V8 valves, bored .125. It has a 600 lift cam and 11:1 compression, a Clifford aluminum 4bbl intake and Cliffort exhaust headers. Electronic ignition. All new parts in the engine. The engine was built in 84, run for two hours to break in and driven down the driveway and back. The kid said "But it's not a V8!" so the Dad parked the Nova (wonder what the kid drove...if he'd been mine he'd been on a bicycle)
The motor was filled with Marvel Mystery oil and left in the garage. Here it is:
We removed the water pump and alternator just to get them out of the way. As expected, the T5 bolted right up but I was surprised to learn that it is twisted to one side...
Once we pulled the manifolds we could see the extent of the head work. Here is the intake:
And exhaust:
The casting number on the head is 3824437 which should be a 230 head with 72.8ccs
I pulled the valve cover today and everything looks spic and span with not a spec of rust.
Btw, here is a photo of the motor mounts we fabbed up last weekend:
Obviously, I'm going to tear the engine down and look it over. While I'm in there I want to deal with the compression and cam lift. I've been told that the TRW pistons have LOTS of metal at the top and that I should have them relieved .100 (or ????) and rebalanced to get my compression back to pump gas....something around 9-9.5:1. Also planning on replacing the cam while I have the engine down. I think 600 lift in a 2000 lb car with a stick will make for a car that would be a real handful to drive without slipping the clutch a lot and probably not something my wife would be able to handle.
Thoughts, comments, suggestions?