Deck height

krazykuda said
We need to know where your pistons are. How far below the head deck is the top of the piston at TDC? Are they flat tops? Any eyebrows/valve reliefs?

Put the piston at TDC and measure the volume above the piston to the head deck with the cover plate as described in the compression check thread. With that info, we can start figuring out where you are and need to go and how to do it.

I would not recommend trying to mill the head and block to get compression. If you do too much milling, you may now have issues with push rod length. It may be better to see if there are any affordable pistons that will get you close, then do the milling.

I gotta go for a bit. The kid wants to do some work on the cars for a while. I will check back in when we take a break....

I will re-measure as noted above, they are flat tops, no nothing, just flat.

Quote: I would not recommend trying to mill the head and block to get compression. If you do too much milling, you may now have issues with push rod length. It may be better to see if there are any affordable pistons that will get you close, then do the milling. .............

My understanding is that there are very little ( custom possibly ) to no piston options avail. for the slant motor. Ask anyone and anyone will tell you that taking .100 off the head and more is how to get things done. That is how compression is gained on these engines. Just what everyone is doing to get the job done.

Evidently very few problems with push rod length and I am still not clear why there are any at this point, I am however going to double check all of these things myself.

I do not want to remove the engine from truck #1, all machining has been done, new pistons, bearings, rings, cam bearings ect has all been done. I do not want to get into any of that again and so milling the head is the option I have and will take. ( unless of course someone tells me I am way off and there are actually a ton of aftermarket parts to choose from )