small block on 240sx
small block on 240sx
Hi,I have a stock 1995 Nissan 240sx that I am thinking of playing with. I have a friend that works with cars a lot who thinks that the 240sx will fly with a few modifications due to its light weight and rear wheel drive. He wants to put in a chevy small block 383 stroker engine that outputs 400 HP. Of course a new transmission, frame ties, bigger radiator, drivetrain, will be needed, along with some other small mods. He is offering to do it all for free, and give me the engine to see how fast it will go. He figures it would be a 10 second car in the quarter mile. I was wondering if anyone else has tried anything like this, and how it turned out.
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cnichols
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- Car: 96 Nissan 240SX
99 Infiniti Q45
93 Ford Fastiva - Location: Bowling Green, KY
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Re: small block on 240sx (mantis)
There are a couple of 240s on here with an LSx Chevy motor and another thread with a 1st gen SBC powered S14 like you're talking about. Won't take long to find many threads on the matter in this forum.
I personally have a 98 LS1 in mine and love it. I have no chassis bracing, just some suspension pieces (strut tower braces, sway bars, Nismo power brace) and I'm also using a Fluidyne radiator made for the KA in an S14 and have no problems with cooling or anything else for that matter.
400hp might not get you into the 10s, but it will certainly get you close given good 60' times and the right weight and gearing.
I personally have a 98 LS1 in mine and love it. I have no chassis bracing, just some suspension pieces (strut tower braces, sway bars, Nismo power brace) and I'm also using a Fluidyne radiator made for the KA in an S14 and have no problems with cooling or anything else for that matter.
400hp might not get you into the 10s, but it will certainly get you close given good 60' times and the right weight and gearing.
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Shift_Kouki
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the_momo
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Re: small block on 240sx (mantis)
i have a 1st gen sbc in my s13 and i love it. its a fair bit of fabrication work, but the wiring couldnt be simpler.
lots of love to the firewall and youll need either a modified crossmember or oil pan.
word to the wise: witha stroker youll encounter some clearance issues modifying your pan too much, so look into modding the crossmember first. with an s14 you have a little more bay room to lay with, but not much. good luck and keep us posted!
lots of love to the firewall and youll need either a modified crossmember or oil pan.
word to the wise: witha stroker youll encounter some clearance issues modifying your pan too much, so look into modding the crossmember first. with an s14 you have a little more bay room to lay with, but not much. good luck and keep us posted!
Re: small block on 240sx (the_momo)
Momo,I have been wondering how fast the car is with that motor, and how much does it affect the cars handling with general driving? I have a guy who builds hot rods that is going to do the work for me. Any advise is appreciated though. I am sure it would help to know the pitfalls and dificulties to the swap before it gets started.
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the_momo
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Re: small block on 240sx (mantis)
its pretty quick, that is to say it has a lot of torque and puts you in the seat.
it also has the stock 4:1 ratio diff. that makes it seem a lot more powerful than it really is. but it is a lot of fun. thats what its really all about. it always puts a smile on my face.
my biggest snags were the firewall (gm uses large bellhousings, it will need to be massaged in one way or another) and the oil pan clearance (or lack thereof). most gm (all except gto lsx motors) are rear sump, and as such will need to be modified to sit behind the crossmember(as mine does) or converted to a front sump (as mine will be next spring) or massively modify the crossmember/steering rack.
since the rack sits behind the xmember, the space for an oil sump is very limited. i wouldnt suggest trying to make it fit as it will be a huge pita to get in without dropping the x member. i highly recommend going to a front sump setup. im simply going to cut a stock oil pan flange off and rotate it 180 degrees, then modify the pickup to route into the new sump area.
that was really it, its a fabrication heavy swap, but not too hard for someone who can cut/weld and be very patient.
visit jags that run for an idea of a good motor mount idea, i pretty much stole their idea.... as it is a mechanically simple and very effective piece. i referenced the volvo v-8 swap motor mount.
good luck!
it also has the stock 4:1 ratio diff. that makes it seem a lot more powerful than it really is. but it is a lot of fun. thats what its really all about. it always puts a smile on my face.
my biggest snags were the firewall (gm uses large bellhousings, it will need to be massaged in one way or another) and the oil pan clearance (or lack thereof). most gm (all except gto lsx motors) are rear sump, and as such will need to be modified to sit behind the crossmember(as mine does) or converted to a front sump (as mine will be next spring) or massively modify the crossmember/steering rack.
since the rack sits behind the xmember, the space for an oil sump is very limited. i wouldnt suggest trying to make it fit as it will be a huge pita to get in without dropping the x member. i highly recommend going to a front sump setup. im simply going to cut a stock oil pan flange off and rotate it 180 degrees, then modify the pickup to route into the new sump area.
that was really it, its a fabrication heavy swap, but not too hard for someone who can cut/weld and be very patient.
visit jags that run for an idea of a good motor mount idea, i pretty much stole their idea.... as it is a mechanically simple and very effective piece. i referenced the volvo v-8 swap motor mount.
good luck!