gen 1 chevy sb questions

V8 240sx? Sure! If either the chassis OR the engine is non-Nissan (i.e. SR20 in an RX-7 or LS1 in a 240sx), we've done it.
qwarnon
Posts: 89
Joined: Tue May 22, 2007 5:30 am
Car: 93 240sx coupe undergoing a 350chevy swap

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alright im probably going to get told to search.. but ive been searching and im looking for a better or more exact answer. I have seen answers to some of these questions.. but im trying to get them all in one place.if someone can point me in the right direction thats great.

anyway.. im in the process of a chevy gen 1 355 swap into an s13 coupe. there are only a couple things i need help with. I'm not worried about hood clearance right now ill work on that later, what i need to know is:

A) can i modify the oil pan and pickup to fit with out hacking up my crossmember (this is what i would prefer) i was thinking possibly extending the oil pickup tube to the front of the pan and just fabricating a pan with basically a front sump.

OR can i buy a premodified oil pan that would allow clearance with little to no crossmember modding

B) do i need to notch my firewall at all and if so where? im using an old T-10 4speed with some internal upgrades. I picked this for its small size and mechanical simplicity. i figured that with its small size it would make less firewall fabrication necessary.

C)what have most Gen 1 swappers done for mounts? i know there is always full custom (which may be best) but also there are universal small block chevy mounts that hot rod and rat rod builders use. would these work well?

D) power steering. ill be using block hugger headers and should be able to perform any mods needed to get them to clear.. any special tricks to getting clearance?

thanks alot in advance. if these questions have been answered before please point me in the right direction. I've been reasearching for a long time now while slowly rebuilding the motor.. and its getting to the point where its time to get her dropped in. so im trying to get a general consensus on these things.


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540sx
Posts: 365
Joined: Fri May 25, 2007 12:11 pm
Car: 240SX
Location: Culver City, Los Angeles

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The universal sbc mounts work .I welded mine to the fram rails. I also set my motor back about 5 inches.

dry sump would be the easiest if you have the money and room in the engine bay. no mods to pan or crossmember.some people are using a truck oil pan that is sumped in the front and rear. with the ls1 motors people are using the gto oilpanbecause it is front sumped but that still requires modding the crossmember.

I personally pushed the motor back five inches and moved the firewall so that my roadrace oil pan would drop behind the rack.also helps with the weight distribution.

speedwaymotors also has some other options for motormounts.

Modified by 450SX! at 1:52 PM 9/4/2008
Modified by 450SX! at 2:02 PM 9/4/2008


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