Stop in for a cup of coffee

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71340Duster said:
The jugs stick out above the block .018 so there aren't any interference issues with a modified J head then, since same casting?
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Her jugs stick out farther than .018" and she doesn't complain about them hitting the combustion chamber....

DD 01.jpg
 
71340Duster said:
The jugs stick out above the block .018 so there aren't any interference issues with a modified J head then, since same casting?
Click to expand...


Like I said, the head gasket is thicker than the pistons stick up above the block...

I would be more worried about piston to valve clearance than hitting the combustion chamber with the piston...
 
krazykuda said:
Like I said, the head gasket is thicker than the pistons stick up above the block...

I would be more worried about piston to valve clearance than hitting the combustion chamber with the piston...
Click to expand...

That is what I'm worried about, valves. Wondered if valve position in the modified J head would put the valve too close to a high compression block piston. Sounds like it should be ok, I need the open chamber I think.
 
All right I'm wearing out my roller wheel on my mouse, (don't touch that Karl). I gotta go to work, have a Great Day All!
 
71340Duster said:
That is what I'm worried about, valves. Wondered if valve position in the modified J head would put the valve too close to a high compression block piston. Sounds like it should be ok, I need the open chamber I think.
Click to expand...


I think you will be fine with both the piston clearing the combustion chamber and piston to valve clearance... Unless you have higher than stock compression...

Rule of thumb is if the engine has a cam with more than .500" lift, you need to check piston to valve clearance... However, I like to be safe and check it anyway to make sure...

I once over revved a 360 and floated a valve into the piston... Put the piston through the side of the block and bent the connecting rod like a pretzel.... I would rather check the piston to valve clearance to make sure it's ok, than to not check it and put a piston through the block instead...
 
Just down the road about 7 miles yesterday
vafb-fire-incident-sep-16.jpg

Vandenberg AFB ground, a remote unoccupied area. The flat lands there is a creek bed, just upstream from there are peat bogs. A few years ago those peat bogs were ignited by another fire and burned for months.
 
71340Duster said:
That is what I'm worried about, valves. Wondered if valve position in the modified J head would put the valve too close to a high compression block piston. Sounds like it should be ok, I need the open chamber I think.
Click to expand...
Dry fit the head with a used gasket, put a little playdough to get an imprint and check your piston to valve clearance.
Just as long as they open the throat up when they install and cut your new seats you should be good.
 
Well....I guess its back to working on the brakes for this 94 C1500 rears are done. knock the front out today. Don't want to work as hard as Frank @Tooljunkie :poke::poke:. Also, the red under vehicle light bars came today...:rolleyes::rolleyes:
 
More Beer Please... What a cluster F . Engineers for Gm. made the front brk hoses a challenge. Have two bolts holding the hose under the upper A arm, But you cant get to them unless you unload the front end, cause they are un reachable unless you do..Then you aint got much room.. I call BS....Done now ... But... WTF ???? :mob:
 
Worst car I ever worked on was a 96ish Buick Regal. Had to take half the car apart to change a valve cover gasket.
 
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