Foxy Green Foxbody Build

1000003416.jpg
 
I took the heads partially apart last week to clean them. At this time I'm not replacing the heads. I'm going to run what I have.

My question is, does anyone lap the valves still? My thought would be if you need to lap the valves, you have bigger issues that lapping won't fix.

The other question is, in order to check the valve seal, can I do this by laying the head upside down and filling the chamber with gas or something and check for a leak?
 
Lots of questions eh copper!
I always lap my valves.
If you have coated Ti valves you may want to ask the company.
 
89 Fox 427 said:
I took the heads partially apart last week to clean them. At this time I'm not replacing the heads. I'm going to run what I have.

My question is, does anyone lap the valves still? My thought would be if you need to lap the valves, you have bigger issues that lapping won't fix.

The other question is, in order to check the valve seal, can I do this by laying the head upside down and filling the chamber with gas or something and check for a leak?
Click to expand...

Sure.
 
89 Fox 427 said:
I took the heads partially apart last week to clean them. At this time I'm not replacing the heads. I'm going to run what I have.

My question is, does anyone lap the valves still? My thought would be if you need to lap the valves, you have bigger issues that lapping won't fix.

The other question is, in order to check the valve seal, can I do this by laying the head upside down and filling the chamber with gas or something and check for a leak?
Click to expand...
Nothing wrong with lapping valves.
 
89 Fox 427 said:
I took the heads partially apart last week to clean them. At this time I'm not replacing the heads. I'm going to run what I have.

My question is, does anyone lap the valves still? My thought would be if you need to lap the valves, you have bigger issues that lapping won't fix.

The other question is, in order to check the valve seal, can I do this by laying the head upside down and filling the chamber with gas or something and check for a leak?
Click to expand...


Acetone..
 
Mister3 said:
Why lap if there is no leaks?
Click to expand...
Because, as far as used stuff, I can visually see what's happening or any little flaws such as where something has got pinched between valve and seat.
1000 lb springs might hide imperfections/leaks, lol.
As far as a new valve job it shows the persons and equipments ability
 
I was watching a video on engine assembly and the guy building a sbf had a bearing on the back of the top timing sprocket. I don't believe I saw that on mine, do they all have them or just some?
 
This book says use contact cement to seal the oil pan gasket to the block. Im guessing this is for old cork gasket stuff and not for these one piece rubber/steel core gaskets
 
Last edited:
I s
89 Fox 427 said:
This book says use contact cement to seal the oil pan gasket to the block. Im guessing this is for old cork gasket stuff and not for these one piece rubber/steel core gaskets
Click to expand...
I sure hope your taking this to the gang and treating them to steak dinner to assemble the engine
 
89 Fox 427 said:
I was watching a video on engine assembly and the guy building a sbf had a bearing on the back of the top timing sprocket. I don't believe I saw that on mine, do they all have them or just some?
Click to expand...
That's specific to the timing set, not the block.
The cam gear used with bearing or hard shim is machined for clearance to accept thus.
 
You must log in or register to reply here.
Back
Top