donnie.petway Posted May 28, 2019 Share #1 Posted May 28, 2019 I'm gonna start restoring my 240 and I was going to do a ls3 swap but now I'm thinking of rebuilding the l24 and just putting a turbo on it. I don't know much about the L series so are the L24 good to build for power or should I use a L28 or just keep with the ls3 swap idea? Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/ Share on other sites More sharing options...
240260280 Posted May 28, 2019 Share #2 Posted May 28, 2019 A stock 1970 with original parts in excellent shape (original or restored) is valued >$50k these days..... modify with care. Values are going up! 3 Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576442 Share on other sites More sharing options...
Patcon Posted May 28, 2019 Share #3 Posted May 28, 2019 I agree, swap with car! I think a better idea, is to source an L28ET motor complete with harness and go from there. That way most everything is reversible in the future when the cars are worth even more. Also the S30 chassis is not properly designed for the levels of torque that the LS series motors can produce. Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576446 Share on other sites More sharing options...
donnie.petway Posted May 28, 2019 Author Share #4 Posted May 28, 2019 I don't know the condition it's got rust but its been in a garage since I got it and the previous owner had it under a shelter I'll upload some pics when I get home from work but if it's in good shape should I look for another and just keep that one original? Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576447 Share on other sites More sharing options...
Patcon Posted May 28, 2019 Share #5 Posted May 28, 2019 1 hour ago, donnie.petway said: I don't know the condition it's got rust but its been in a garage since I got it and the previous owner had it under a shelter I'll upload some pics when I get home from work but if it's in good shape should I look for another and just keep that one original? If it's rusty, that makes it even harder to add lots of torque. All the S30 cars are appreciating very fast right now. The early cars especially. The later cars are better candidates for a swap. Especially the 280z. It's heavier and better braced and is already fuel injected. Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576451 Share on other sites More sharing options...
donnie.petway Posted May 29, 2019 Author Share #6 Posted May 29, 2019 Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576490 Share on other sites More sharing options...
Terrapin Z Posted May 29, 2019 Share #7 Posted May 29, 2019 Welcome to the club. The car does look to be of an earlier model. It does look like it will have some rust issues as well. The motor looks like it may have already been replaced at some time, so it might not be a numbers matching set up to start with. You can verify the engine number from the stamp below the # 6 plug L24 XXXXXX and compare that to the ID plate mounted on the shock tower. Would you mind sharing the vin number from the dash? Just with a later valve cover and Air cleaner (72?) it looks to me like it was changed out. The 70 does have a few unique parts that are sought after, but I'd say you have a good candidate to do what you want. and enjoy the ride. Just be sure the chassis (brakes, steering, suspension, etc.) can handle the power you put in it. Be safe! Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576491 Share on other sites More sharing options...
duffymahoney Posted May 29, 2019 Share #8 Posted May 29, 2019 The valve cover changed from 2400 to OHC halfway through 1970. My 1/71 build series 1 has the same one. The valve cover for this time is slightly different from later ones. Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576509 Share on other sites More sharing options...
240260280 Posted May 29, 2019 Share #9 Posted May 29, 2019 It has the early OIL cap and the early metal fan ? Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576510 Share on other sites More sharing options...
jfa.series1 Posted May 29, 2019 Share #10 Posted May 29, 2019 The snorkel on the air filter has the butterfly / heat riser feature. Per a comment I received from Carl Beck a while back, the heat riser from the exhaust manifold was added somewhere about 6,000 units into production, not reflected in the parts catalog. The car can easily be a '70 production date. I see the coil has been replaced with some kind of electronic box. 1 Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576513 Share on other sites More sharing options...
jfa.series1 Posted May 29, 2019 Share #11 Posted May 29, 2019 36 minutes ago, 240260280 said: It has the early OIL cap and the early metal fan ? And no finger guard on the radiator - no obvious sign of its removal. 1 Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576514 Share on other sites More sharing options...
donnie.petway Posted May 29, 2019 Author Share #12 Posted May 29, 2019 I'll put the vin number when I get home anything else I should look for? There's a lot of info yall are telling me I had no clue about 1 Link to comment https://www.classiczcars.com/topic/62244-1970-240z-restoration-engine-ideas/#findComment-576515 Share on other sites More sharing options...
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