Jump to content
HybridZ

F54 back from the dead?


Guest raystorm280z

Recommended Posts

Guest raystorm280z

Hello, I'm considering doing the 3.1L stroker with a F54 block that I can get for a really good deal. I've never really done something like this, and would like to hear some of your opinions of whether this can be done with the engine I'm looking at or not. Here are some pics...

 

block1.jpg

 

block2.jpg

 

eng1.jpg

 

It's pretty rusty, and I was told had a little more than 100,000 miles on it when it was pulled. It looks pretty bad, but the price is really low (under $100). Do you think its a lost cause? From what I read from The Datsun Workshop the F54 block can be bored out by a lot, so maybe the block would be alright... But do you think it would be better (for my car/wallet ;) ) to spend more for a block that is in better condition? How much do F54 blocks in "good" condition run? Thanks for any help, looks like I have a long way to go ugg.gif

Link to comment
Share on other sites

Yep, doesn't really matter since your going to clean it all up anyway with the bore. The one I have was found for $90, although it has 175k miles on it or so.

 

Stroker is way more than I'd want to spend, I'd rather go V8, so this one will probably be a budget refresh with new bearings/rings.

Link to comment
Share on other sites

That's a turbo block! All F54 NAs came with flat top pistons.

 

For a 3.0, all you need is 9mm L24 rods, KA24 (240SX) pistions and bore it 3mm.

For a 3.1, you need the above, plus a diesel crank, and you'll need to flycut the pistions too.

 

Pete

Link to comment
Share on other sites

hey, ive got an f54 block engine sitting on my side yard (on an engine stand) with a p79 head on it... it may be a bit cleaner on the inside..

if you'd like to see it let me know and i'll take some pictures of it for you... I'd let it go for $70-80 if you pick it up.

 

Joe

Link to comment
Share on other sites

I would recommend anyone doing a 3mm overbore to have the block sonic tested first. It'll cost you ~$100, but that is much cheaper than having to do another block when you find out the hard way that the walls were too thin. I went through 3 blocks before I found one suitable for that large of a bore. If the water passages have been corroded too much, the cylinder wall (especially between the #5 and #6 cylinder) can be really thin and have the potential of cracking. (First hand experience) bonk.gif

Link to comment
Share on other sites

Guest raystorm280z

Thanks for all the help. I know that the 3.1 Stroker isn't the most efficient way to go, but I like the ideal of keeping an L-series engine in the my Z. It'll probably bite me in the butt, but for now I think its what I'm aiming for. smile.gif

 

Thanks again!

Link to comment
Share on other sites

Guest raystorm280z

Mudge, good point. I think I got excited after I read the 3.1 article from The Datsun Workshop . Either way I'm going to have to find and clean up a F54 block, and I'll probably just go on from there. Hopefully I can find some literature on the 3.0, and can weigh the two.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...