ok another newb question ive looked on the forum and on other websites. my car is a 74 260z but the block says l28 with n47 head. i need a new clutch going for the oem ones

http://www.blackdragonauto.com/features/z/ZCLK.htm

should i order the 260z or 280z?

any help would be much appreciated thanks again

From what I remember the clutches go more by year than by motor.

As stated elsewhere on this site, you need to know which pressure plate/throwout bearing collar combination you have on there. Due to height differences they need to go together. Unfortunately the only way to really know is to have the tranny out when you buy your parts.

hmmm ok thanks ;/

Get a STOCK Exedy brand clutch from Dial a Clutch in Boca Raton Florida.

Since you don't know where the engine came from, you need to find out if you have a 225 or 240 mm clutch disc and pressure plate.

You also need to find out more about your transmission, for the throwout bearing collar, otherwise you could swap the new bearing in to your old collar, if you get the wrong one. Is it a 5 speed or 4 speed? If you have a 5 speed, then someone probably swapped a newer engine and transmission in and you could just guess that it's a 1978 or later (because of the N47 head on an L28) and get a clutch set for that year. If it's the original 4 speed, then you should probably get the 74 260Z set.

I am assuming that you'll buy a set, which usually comes with a new collar, but might just come with a bearing.

Looking at the Oreillys Auto site,the change to a new clutch style (probably the throwout bearing collar) happened at 1975, so knowing your transmission is important.

its a 4 spd its an early 260 4/74 but i believe the tranny is from a diff car. ill take more pics of it later btw how can i tell wich trans model i have?