Guest hwk60 Posted August 27, 2004 Share Posted August 27, 2004 I have a clean and tested fuel tank from a 73z....i want to take out and junk my 75z gas tank...lots of rust and holes. Will the 73 tank work for me? I know it was originally set up to use fuel injection and had extra baffels, whereas the 73 has no baffles. But since i have a carb on my 350, it should work shouldnt it? Thanks. Quote Link to comment Share on other sites More sharing options...
wheelman Posted August 27, 2004 Share Posted August 27, 2004 The 73 tank should work just fine. If you do plumb a return line from the carb you might have to replace original return connection on the tank or find a different place to connect it such as the filler neck. Wheelman Quote Link to comment Share on other sites More sharing options...
Guest hwk60 Posted August 28, 2004 Share Posted August 28, 2004 This car will be my "sleeper" it will look almost exactly like my stock 72 240z. I dont care about return lines or gas mileage. My prime concern with this car is speed....speed primarily from a rolling start, or from a running start as in interstate speeds of say 70 mph...and then i want an ability to punch it and deliver large volumes of fuel and air...for HP and quick accels. Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted August 28, 2004 Share Posted August 28, 2004 I could be wrong on this but worth checking out first. I believe the '73 and the '75 had different shaped tanks. I know for a fact that the the later 280's had a different tank. If so it would not be a direct bolt up. Quote Link to comment Share on other sites More sharing options...
datsunlover Posted September 1, 2004 Share Posted September 1, 2004 I thought all the 280s had a diffrent tank.. as 75 was the year they introduced FI and had to make provisions/changes to the tank.. Quote Link to comment Share on other sites More sharing options...
wheelman Posted September 1, 2004 Share Posted September 1, 2004 My understanding is that the change in tank shape was made in 77 because Datsun switched to use the mini-spare so the spare tire well was reduced in size and moved up in the rear hatch area. This made it possible to increase the size of the tank. I've read that the earlier tanks 70-76 will work in the later cars 77-78 but not vice-versa. In other words the 73 tank should fit in your 75 280. Do a search on fuel tanks and you'll get alot of information that agrees with my statement but nothing that directly answers your question. Give it a try and let us know if it works. Wheelman Quote Link to comment Share on other sites More sharing options...
1 tuff z Posted September 1, 2004 Share Posted September 1, 2004 i've read that the swap from 8/74-8/76 tank into a pre-8/74 carb'd car works fine and most have used that swap when moving to a fi setup. i also have the datsun parts cd and the 2 tanks look almost identical in shape. the change occured with the 9/76+ tanks that [as stated earlier] used a space saver spare, higher rear deck area and larger tank. Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted September 2, 2004 Share Posted September 2, 2004 Thanks for clearing that up guys. Sorry for my miss-que. There were so many changes to the 1st gen cars you really do need a program to tell them apart! Quote Link to comment Share on other sites More sharing options...
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