ZZZero Posted February 18, 2006 Share Posted February 18, 2006 Hey all,I've hung around these forums for about 2 years,but just recently registered, I am considering a sbc swap into an 88300zxt,and was needing to know if the sb 350,and the ls1 or ls2 used the same mounts and or mounting positions,reason I ask is becuase I have a sbc 350 on hand right now, but later own down the line I would like to move up to an ls1/ls2. If it would require refabbing of the mounts I will just drop in an ls1/ls2 in the first place. Glad to be on this very informative site! and thanks! Later, Quote Link to comment Share on other sites More sharing options...
Lason Posted February 18, 2006 Share Posted February 18, 2006 no the ls1/ls2 have different mounting locations than the Gen 1 SBC. Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 18, 2006 Author Share Posted February 18, 2006 Thanks, I've been reading up and think a 502 might make a good candidate instead of the 350:-D. Anyone know what vehicle 502's came in? Sorry for my lack of knowledge,I searched here,and also google,and didnt find exactly what I was looking for. Plus im not exactly a chevy guy so this is someone new to me:wink: Quote Link to comment Share on other sites More sharing options...
Brad-ManQ45 Posted February 18, 2006 Share Posted February 18, 2006 None - only 427's and 454's came in cars. Quote Link to comment Share on other sites More sharing options...
Lason Posted February 18, 2006 Share Posted February 18, 2006 502 is a crate motor.....396,402,427 and 454's are big blocks that came in cars/trucks from the factory. From what I have read and searched on here you had better do some major frame mods and a cage to handle the size and tourqe of a big block. not worth it IMO. Quote Link to comment Share on other sites More sharing options...
teamxtreme280zx Posted February 18, 2006 Share Posted February 18, 2006 It's a caddy motor. Quote Link to comment Share on other sites More sharing options...
Lason Posted February 18, 2006 Share Posted February 18, 2006 It's a caddy motor. 502 is not a caddy motor. Caddy has a 500ci motor but it is not the 502. Completely different animal. Quote Link to comment Share on other sites More sharing options...
teamxtreme280zx Posted February 18, 2006 Share Posted February 18, 2006 A friend of mine has an old 70's caddy hersh with a 502. All stock. Quote Link to comment Share on other sites More sharing options...
teamxtreme280zx Posted February 18, 2006 Share Posted February 18, 2006 Also i do agree with you. There is a 502 crate motor available through GM performance too. Quote Link to comment Share on other sites More sharing options...
Lvcien Posted February 19, 2006 Share Posted February 19, 2006 whoa, what's the weight on that thing? -- that's a big a$$ block I'm sure ... What part of florida are you in? Quote Link to comment Share on other sites More sharing options...
Lason Posted February 19, 2006 Share Posted February 19, 2006 whoa, what's the weight on that thing? -- that's a big a$$ block I'm sure ... What part of florida are you in? The chevy 502 is the same physical size as every other big block I posted above. Right down to the 396. Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 19, 2006 Author Share Posted February 19, 2006 Then whats the major difference between the engine? bore I take it? I live in central florida. 400+ horses naturally aspirated sounds pretty inspiring to me:icon44: Quote Link to comment Share on other sites More sharing options...
Lason Posted February 19, 2006 Share Posted February 19, 2006 Then whats the major difference between the engine? bore I take it? I live in central florida. 400+ horses naturally aspirated sounds pretty inspiring to me:icon44: Bore and stroke. Heres a page that shows all the different sizes when dealing with bores and strokes. http://www.roadsters.com/bbc/#bore The thing is that it isnt that hard to make 400+ horses with a naturally aspirated smallblock and not have the weight or size of the big block under the hood. IMO, unless you plan on turning your Z into a track car and tub it out with a tube chassis then the small block is the way to go. Add turbos/nitrous into the mix and a 700+ horse smallblock is not far off either. I just finished building a big block for my Nova which I traded for my Z and i can tell you prices on aftermarket parts for big block vs small block is substantial. A nice set of aluminum heads for a small block are going to run about $1-1500. Big block aluminum heads dont start complete for under $2000 most of the time. Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 19, 2006 Author Share Posted February 19, 2006 I Have been considering tubing the chassis,but I only plan on doing it id the benefits outweigh the costs. Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 19, 2006 Author Share Posted February 19, 2006 After more research ive decided to go with a 454,What vehicle (and what year) did this engine come in? and are they all 7.1liters? Thanks alot for the help It's much appreciated! Quote Link to comment Share on other sites More sharing options...
Lason Posted February 20, 2006 Share Posted February 20, 2006 After more research ive decided to go with a 454' date='What vehicle (and what year) did this engine come in? and are they all 7.1liters? Thanks alot for the help It's much appreciated![/quote'] lol.... Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 23, 2006 Author Share Posted February 23, 2006 I've decided to use the donar sbc 350 that I have on hand to go ahead and fab up mounts for the engine and tranny,then later down the line after paint and suspesion work,i'll buy an aftermarket smallblock that can be stroked to 454 Quote Link to comment Share on other sites More sharing options...
Mikelly Posted February 23, 2006 Share Posted February 23, 2006 Ah yes, Evolution of a HybridZcar plan... We went from a 502, to potentially a 500CI to a 454, and tubing the chassis (Of a unibody car ) back to reality and the traditional SBC in five short days! Sometimes the fun is in watching you guys formulate the plans and educate yourselves along the way! Mike Quote Link to comment Share on other sites More sharing options...
ZZZero Posted February 24, 2006 Author Share Posted February 24, 2006 Haha guess i deserved that one. Soon here I'll have pics of the car in its current state. Its pretty much a bare unibody with the front end on one side of a rotisserie and the other end on tires while I finish the other side. * of the rotisserie Quote Link to comment Share on other sites More sharing options...
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