240 motor in a 280?

[gator]

If I buy a 77 280 ..can I put a 240 motor it? if yes ..what will it take and what needs to be altered .. I know anything can be done..I am just wondering about easy bolt ups.

Thanks ..Bruce

PS ..I have a line on a 280 2+2 ..cheap in rough shape .. and may buy it anyway.

[gator]

hmmm? something I said? no replys ..

[ZmeFly]

You would be taking a lower powered engine and putting it into a bigger car. IE swapping a 2.8 for a 2.4. It would be best to rebuild your current engine with flat tops.

[gator]

thanks .. my thoughts were about the cost to re-build the FI 280 motor and the simple 240 motor that I know like the back of my hand .. Is the 280 2+2 bigger (heavier) than a 260 2+2?

[datto_240z]

280Z or 280ZX?

If just a 280Z(L28), The engine is exactly the same as a 240Z's(L24) besides the bore(stroke too?) and it has fuel injection. The 240Z's and 280Z's body's are the same besides from the bumpers, badges etc. Nothing major. So therefor a 260Z 2+2 is the same weight as a 280Z 2+2... Or there abouts!

If your talking about a 280ZX... thats where my knowledge ends. :sleepy:

So I recon keep the L28! They are probably just as simple as a L24. :stupid:

Cheer'z'

[gator]

ya .. it is a 76 280 2+2 and it is just like a 240 or 260 .. I prefer the simpler motor without the FI.

Thanks

Any more input ?? has anyone else done this? I know all you purists out there are shaking your head .. I am a purist at hart too .. but I dont have the same feeling about a 280 as I do to a 240 and dont feel the same "purist" type aproach to the re-build.

[ZmeFly]

If your not liking the FI to much you could always easily retrofit a set of su's on your motor without a problem. In any event like I said definetly go with the flat top pistons.

[beandip]

There is nothing more complicated in the 280 block ! It's the same design . The only differences are in the last 3 or 4 yrs of the inline 6 block . The F-54 block, and this is just the way the casting was done around the cylinders. The difference from the L-24 to the L28 is the crank shaft , the stroke is longer on it and the L-26. Everything will exchange with the 240. Just use your 240 intake and carbs. The cost of rebuild and parts is the same infact if you wanted to buy a remanufactured engine 240 blocks are not acceptable as cores from what I have read. Now some of the 280s have dished pistons and some flat tops so if you are going to use the head from a early 240 check what compression you will end up with, you might be dissapointed or supprised. Check out this web site geocities.com/zgarage.2001 good information there. And yes indeed the 2 + 2 is heaver . When I say all will exchange I mean the outside parts not rods pistons and cranks. Be careful there. Gary