Project X
- Thread starter spd500
- Start date
spd500
New member
I got a few of the spare parts off of the motor , but still have some more to go . I will get some pics up of the progress so far . This motor is really clean , even the oil looks like new . I pulled the intake and under the intake was even clean . I read that there should be numbers cast into the head gaskets indicating the engine size from the factory , but I have no numbers on my head gaskets . I wonder if this motor was rebuilt ?
blazeracer
New member
Patchman said:
I'll go ahead and tape that race as I walk on both of ya'll with my little 325 inch small block
blazeracer
New member
spd500 said:
1. A 76mm LM7 EFI throttle body will flow 920 cfm without boost, almost double that with 8psi of boost.
2. My boat's a Glastron Carlson, the fastest cruiser hull ever built.
jroberts88
New member
KONA said:
Make that 3 of us.. All though i am a chevy man at heart but she has a ford in her...
blazeracer
New member
spd500 said:
They say the only way to tell the size on the iron block motors is the pistons. The 5.3 pistons will be dished, the 4.8's are flat tops. An aluminum block 5.3 will have flat tops also. The pistons, the rod length and the crank stroke are the only differences in a 4.8 and 5.3 and there is no way to tell from the outside. You have to pop the heads off the be sure, or put a scope down the spark plug hole and look for the dish.
I thought my motor had also been rebuilt when I first started digging into it, but alas, it's all original. I think the LS motors just last very well. Everything has GM stamps on it and the bearings are definitely worn. No size indicators on the heads gaskets that I saw, but I wasn't really looking either. Mine does have dished pistons.
blazeracer
New member
Devilman said:blazeracer said:1. A 76mm LM7 EFI throttle body will flow 920 cfm without boost, almost double that with 8psi of boost.
2. My boat's a Glastron Carlson, the fastest cruiser hull ever built.
Mighty bold statement there.... :grin:
There was a vid out there of a guy in a 18ft Carlson running 125 on radar with a small block, OT headers and NOS thru an Alpha outdrive. Unfortunately the video has been banned in our country. The run was in Canada. I know a few here have seen the vid and it's why I bought the hull I did. Never seen any other cruisers do that!!
http://www.texashotboats.com/forums/index.php?topic=11347.0
But it's winter time, meaning time for the smack talk to begin again. LOL
That's a sweet vid, and why my buddy bought his Glastron hull. Then he did his homework and found out the whole bottom of that boat had been re-worked. So it's not really a stock Glastron by any stretch of the imagination. Still a cool boat though! :smile30:blazeracer said:Devilman said:blazeracer said:1. A 76mm LM7 EFI throttle body will flow 920 cfm without boost, almost double that with 8psi of boost.
2. My boat's a Glastron Carlson, the fastest cruiser hull ever built.
Mighty bold statement there.... :grin:
There was a vid out there of a guy in a 18ft Carlson running 125 on radar with a small block, OT headers and NOS thru an Alpha outdrive. Unfortunately the video has been banned in our country. The run was in Canada. I know a few here have seen the vid and it's why I bought the hull I did. Never seen any other cruisers do that!!
http://www.texashotboats.com/forums/index.php?topic=11347.0
But it's winter time, meaning time for the smack talk to begin again. LOL
Knotty Girl
New member
Crusader said:
It was a 100mph boat they were selling on CL and Ebay. crazy.gif
spd500
New member
blazeracer said:
You can roll a piston up to TDC and look in the spark plug hole to see the top of the piston . Mine are dished . There are pics over on LS1Tech that show the markings on the factory head gaskets , but my gaskets have no markings that I can find . They markings should be on the little tab that sticks out at the bottom of the head , under the exhaust manifold .