Jump to content
HybridZ

oil pan problems


Recommended Posts

Ok here's the story, I know this guy who put a 350 in a 240 (he did a bit of a hack job if you ask me) anyway now he says he's gonna put the L6 back in cuz he is tired of wiping out oil pans. Well I was just wondering, is this a problem you guys have run into or what's the story? Did he mount the engine too close to the ground or is there a swallow pan that should be used?

Link to comment
Share on other sites

This is a valid concern.

 

The stock oilpan on the SBC is generally 7.5" oilpan rail to lowest point - on the older engines anyway, I don't know about LT1s.

 

With the JTR spacers, setback plates and GM mount specified by JTR, the bottom of the pan ends up about 1" below the crossmember.

 

I have a buddy that dinked his oil pan on a very tall man hole (road was ground down, to be resurfaced). The way the sump is just behind the tires makes it a prime candidate to get smacked as you roll over speed bumps as well.

 

I'm using (the now, discontinued) old Corvette pan for the 2 piece left hand dipstick SBC's. I don't know whether it's available for the later Corvettes (post 85). This pan is about 7" deep, instead of 7.5"

 

Another solution is the Canton and Moroso road race pans which are 6.5" deep. The problem is that they are 14" wide and you need to curve the exhaust away from them IMMEDIATELY if using block huggers. I can't fit them on my car with the existing exhaust.

 

Of course, if you don't lower the suspension too much this shouldn't be a problem even with the 7.5" regular pan.

 

Oh, and another thing. The 1/2" spacer blocks that JTR says to use between the frame rails and the crossmember lowers the crossmember and engine by 1/2" compared to if they are not used. (It's tricky to picture this, but the springs hold the car up off the ground, which holds the strut towers and frame rails up, and the crossmember is hung from those.) So leaving the spacers out gains you 1/2" of ground clearance at the pan. I thing the reason for them is to have better clearance for the distributor under the latch bracket.

 

------------------

Pete Paraska - 73 540Z - Marathon Z Project

pparaska@home.com

Pete's V8 Datsun 240Z Pages

 

[This message has been edited by pparaska (edited April 01, 2001).]

Link to comment
Share on other sites

There IS a 'Vette oil pan for one piece seal motors that can be used that's low clearance. I considered this pan but stupidly went with a Moroso added capacity pan. Imagine a standard GM pan with about another inch tacked onto it - doh! It hangs lower than my transmission and a touch lower than my frame rails. Yes, dinging that is a serious concern of mine right now. However to go back to an L6 just seems stupid to me. Before I did that I'd have a custom pan made - lot's of places can do it.

 

Pete, those road race pans sound very interesting - any ideas on cost? I'm thinking "not cheap" frown.gif

Link to comment
Share on other sites

Guest Anonymous

Check this http://www.tcracecars.com/partslist/contentlist.htm Go to the canton racing products. I think this is the pan I have, it gains you some clearance and it has internal baffles and big "wings" on both sides so lateral g's will not oil starve the sump. Exhaust will have to be modified. I have 2 1/4" pipe and it is VERY close. Mark

 

[This message has been edited by Mark (edited April 01, 2001).]

 

[This message has been edited by Mark (edited April 01, 2001).]

Link to comment
Share on other sites

Hrmn, Canton CAN 11-102 sounds possible at only 6.5 inches. I figure I'll run this one and see what sorts of torubles I run into first. Pete - all I've ever seen in Jegs or Summit has been circle track pans which are baffled for turning right only I think. I'll look again and see. The 'Vette pan might really be a better deal. In talking with Lone he said his Goodwrench pan is above the level of his trans so maybe that would work as well - no sense getting too much higher than somehting liek the trans or crossmember is there?

Link to comment
Share on other sites

No, no sense going higher than the bottom of the crossmember.

 

BTW, Jim Biondo tells me that with the Vette pan and pickup, he had 0 psi oil pressure on the road race course on long sweepers.

 

Based on that info, I'd say if you haven't done your exhaust yet, look at one of the road race pans, if you can handle the price and don't mind the fitment problems (exhaust, etc.)

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...