Jump to content
HybridZ

Blue dog setbacks, now the head, need pointers


Kevkev5162

Recommended Posts

So I dove in, spent over 1000 so far in parts with out doing all my homework first. After looking for a replacement exhaust manifold discovered that I have a n42 block with p90 head. Everyone seems to want them for turbo builds but having just put a Holley 390 and Bob sharp intake and a turbo is not the way I want to go. I'm under the impression that unless the pi put flat top pistons my cr is gonna be 7.4. After alot of work I don't want to end up w a car that is less powerful than stock. So there's a few options, shave head, flat tops etc. I'm not ready for a top or bottom end overhaul right now. Is the logical solution to find someone that wants to trade a n42 w possibly some work done to it?there's one on eBay for 350 w spray bar? Is this fair? Wat should a p90 sell for, car has been running, idling, revved but not driven yet so p90 seems in good working order, thanks for any ideas all

Link to comment
Share on other sites

This is osted in u build thread, done before alot of pars got ordered so car wasnt runing:

 

Today's project after a 10 hr work day: drain oil, run a cpl quarts through to try to flush out gasoline. I borrowed a compression tester and did a check. The car is not running so the test will come back 10-15psi lower than operating temp from what I've read, also traces of gas in oil I think may make it lower as well. My results came back as follows: cyl 1: 155, cyl2:140, cyl3:140, cyl4:150 cyl 5:130 cyl6:150.

Link to comment
Share on other sites

I have a n42 head that I may could trade ? if you want a scope could tell you if you have dish pistons . those are good cold numbers but not really accurate they should come up when the engine is warm. Let me know I am kinda leaving the N/a world after owning a turbo car 

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...