Just bought a 260 2+2 for a parts car. The motor has early SU's and runs really well but I can't identify whether its a L24 or L26 as the L xx before the serial number looks like it may have been grinded off It has a e88 head and on the LH side of the block is stamped P 30 3309.

Did the P 30 blocks run both L24 & L26 ?

Any tips on differences?

cheers Steve

Well, I am not familiar with AU specs but I am pretty sure the P30 was the casting number on L24 and L26 motors. Also, the E88 head came on late '71 240 - 260Z in US. There were at least two variations of the the E88 head but they had the same casting number. Sounds like it could be the stock motor with early carbs. But didn't AU 260Z's use the same carbs as the 240Z? Or did AU get the flattop carbs like US???

What is the casting number on the intake manifold?

Yes the round top carbs ended with the 240z in '73.

I've also noticed that the build plate on the 260 only gives the chassis #, where as the 240 plate has stamped chassis and motor numbers.

Steve

If your intake manifold says N36 it's most likely L26 if it read E88 then your looking at more likely a L24.

P30 came on both l24 and l26 blocks as already stated.

What year is your Z also?

If it's a 2+2 parts car I think it's gonna be l26.

i thought it was like this

240z - L24

260z - L26

280z - L28

280zx - L28

300zx - VG30 ?

Hi guys,

maybe I can help I have lots of engine numbers for 240 and 260 in the data base, either post or private message me the full engine number and I will check it across the info I haveand let you know what it is. I will need the info below to cross reference.

Can you tell me the body number from that data plate that says L26 and has no engine number area. also maybe the colour in and out and the compliance date

cheers

Steve

That was quick Steve.

I was just about to suggest to Steve that he pm Steve regarding Steve's problem cos Steve has heaps of info that might solve Steve's problem.

HMMMM, might have to refer to you as SJ or Steve 1 from now on to avoid confusion.

Rick.

1 Bravo 6,

come on Rick give me a break, I always getting that line from Annette, word for word I'd say.

cheers

Steve:classic:

build 10 / 1976

gsr30 015069

current motor 017555

original orange in colour with cream interior

straight car but only good for parts now as the rust has taken a hold in the lower sills, quarters etc.

Nissan must have stopped stamping motor #'s on build plates in 76 because my earlier 240's and 260's detailed them.

Steve AKA Steve

280ZX Fever,

The P30 that the guys are stating refers to the type of block that the L series engine has.

Check out a good Zed website for the differences at http://www.geocities.com/zgarage2001/engine.html

Originally posted by HKSZ

Yes the round top carbs ended with the 240z in '73.

Steve

Really? My 260z 2+2 parts car has round top carbies. (diifferent to my 240z round tops, but definately not flat tops). Its a '75.

Think maybe only the US got flat tops to meet emmission laws.

Any aussies with 260z's have flat tops, and what year is your 260z? Lets work this out once and for all.

All 260z's came with flat tops, anything else was retro fitted later.

73 or the last 240z's had the round top's.