Guest We Bad Posted September 3, 2008 Share Posted September 3, 2008 Anyone here know of a 4.3 L Chevy V6 swap? Quote Link to comment Share on other sites More sharing options...
letitsnow Posted September 8, 2008 Share Posted September 8, 2008 Nope, but if you go look at an SBC powered Z, just imagine the engine missing 2 cylinders and you've got a 4.3 swap. the 4.3 IS an sbc that is missing 2 cyl. Quote Link to comment Share on other sites More sharing options...
Guest We Bad Posted September 17, 2008 Share Posted September 17, 2008 Apparently it is not a common swap. Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted September 17, 2008 Share Posted September 17, 2008 There have been a few. One here that was procharged. I have one that is 4bbl carbed, stock motor. The thumbnails show a roller cammed aluminum block and head motor which is pretty unusual. Is that your engine? Quote Link to comment Share on other sites More sharing options...
Guest We Bad Posted September 18, 2008 Share Posted September 18, 2008 Yes this engine is destined for my 280Z. It is based on a GM race block and has the capacity to go to 320 cubic inches, (4.000 in. stroke), although I'm going to stop at 300. (4.125 bore by 3.75 stroke.) 5 liters is BIG for a 6 cylinder and this block weighs only 74 lbs including the main caps. Quote Link to comment Share on other sites More sharing options...
Guest Luigi Posted September 18, 2008 Share Posted September 18, 2008 I'm pretty dure you know about these points. 1. when rpm or hp goes up on the V6 you're gonna land on a common pin crank. these take some special parts to work camshaft and ignition. 2. when you use a common pin crankshaft in one of these, IT WILL DO IT'S BEST TO SHAKE ITSELF AND THE CAR APART. other than that, I think they're very neat engines. If you don't bug them (about anything but the part like tuning) Hillborn probably has a couple of the bases left around. HVH cly. heads has ported alot of those heads he (Joe) had some blank canted valve stuff hanging around. good luck the pwr?lbs. will be untouchable if built right and weight dist. will be also. Luigi Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted September 18, 2008 Share Posted September 18, 2008 Does that mean he can simply get an older odd fire crank that isn't "split" on the rod journals? Quote Link to comment Share on other sites More sharing options...
gwnwar Posted September 18, 2008 Share Posted September 18, 2008 Got one (4.3) in a Miata runs great..350sbc in my 77Z.. Sold the other Miata with the 5.0 Foed.. Quote Link to comment Share on other sites More sharing options...
AlwaysBroke Posted September 18, 2008 Share Posted September 18, 2008 Neato! I put one in my Z a couple of years ago and I love it. Is that an aluminum block, and what kind of heads are you using? Im having some 2003 Vortec heads ported out to use on mine and they should flow just as good as the Brodix heads, only about 2 grand cheaper. Lunati is selling their Voodo cams for these motors and they are the best that I could find right now. What type of aspiration do you plan on using? Quote Link to comment Share on other sites More sharing options...
wsalguero99 Posted October 27, 2009 Share Posted October 27, 2009 I just saw a 4.3 on a 240Z and it looked perfect in the engine bay Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted October 28, 2009 Share Posted October 28, 2009 Do a search for "John Scott" or PM him if you can find his profile. Quote Link to comment Share on other sites More sharing options...
Guest Jesh Posted November 5, 2009 Share Posted November 5, 2009 hey buddy, did ya ever start the V6 swap? I just pulled my L26 outta my 260Z and we're getting ready to put in a Vortec 4.3 V6 i found at my buddy's place. Might go with his Toyota W58 tranny with his bellhousing adapter to make the tranny match up. Hopefully my mounts'll be ready within a week or so. Quote Link to comment Share on other sites More sharing options...
We Bad Posted February 6, 2013 Share Posted February 6, 2013 104.8mm bore X 88.4 stroke = 4.6L Quote Link to comment Share on other sites More sharing options...
We Bad Posted February 9, 2013 Share Posted February 9, 2013 Headers on a V8 (or V6) Z car are problematic. Steering linkage issues on one side, starter heat soak issues on the other side and narrow spacing of frame rails requiring small diameter primary pipes with sharp, tight bends immediately out of the port. Once down in between the frame rails you are left with a tight transmission tunnel compromising either exhaust system size (diameter), ground clearance or both. I went with fender-well headers ( 1 7/8 " dia. primaries) that go outside of the frame rails and a side pipe exhaust system. The downside is that the battery must be relocated and the master cylinder moved to the driver's side of the firewall. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted February 9, 2013 Share Posted February 9, 2013 Please post LOTS of photos of those headers and how you moved things around to allow their use. Installed photos too when you have them. Suscribed. Quote Link to comment Share on other sites More sharing options...
We Bad Posted February 11, 2013 Share Posted February 11, 2013 More photos as requested: Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted February 11, 2013 Share Posted February 11, 2013 How did you move the brakes inside? Quote Link to comment Share on other sites More sharing options...
We Bad Posted February 13, 2013 Share Posted February 13, 2013 A discussion of master cylinder relocation would be off-topic for this thread. Incidentally, for those curious, the plastic engine block and transmission came from P-Ayer Products (http://www.payr.com/). Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted February 13, 2013 Share Posted February 13, 2013 (edited) You are so right. Perhaps another time in another thread (I'll keep my eyes peeled)...fantastic car and beautiful work! Edited February 13, 2013 by RebekahsZ Quote Link to comment Share on other sites More sharing options...
We Bad Posted February 19, 2013 Share Posted February 19, 2013 The 4 stage dry sump oil pump was located on the right side of the engine to avoid clearance issues with the steering shaft. Quote Link to comment Share on other sites More sharing options...
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