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Are the exaust manifold bolt holes on you guys trucks larger on both ends and a smaller, tighter fit in the middle holes? Mine are. My truck has been down since October. My son is installing my engine for me since I am disabled to do so. The manfolds will not fit now. Will they shrink enough...

These guys in Australia know how to build a car. Wonder if they could build us a Syclone II or Typhoon II ? Look what they are going to do. http://discussions.gmforums.com/showthread.php?s=07bf771f5d8c5df71c78a9ec15cb43c8&threadid=26768 :D :D :D

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1869507973 Be advised guys this engine is not an original ST / TY engine. He says the crank is. The turbo is. The original tranny,as he purchased it, is a GM replacement, before the modifications were done. The paint job was...

Ok Guys, don't throw stones at me. I have been so out of touch with engines and modifications for so many years I really don't know the answer. Can reverse flow water pump technology be applied to our 4.3 engines? If so, where can it be found, at what price and to what benefit? If anyone runs...

I remember reading either in this group or another, here while back, of a person that has a brand new short block for Syclones or Typhoons for sale. I wish someone could email me if they know who this person is. I want to switch my damaged engine out for a short block aseembly (correct version)...

Guys I refuse to beleive it will take replacing the transmission or overhauling it to make my SY change gears at WOT (stock chip and tranny) from 3rd to 4th at 100mph. Please someone tell me what I need to do. I understand that the SY is supposed to shift at 100mph. This may have already been...

Well the one I saw was mine. I just bought it from Kentucky. Lokking forward to spotting more in my area. Sumter SC. About 100 miles from Myrtle Beach. Tyrone

Hello everybody from Sumter S.C. (Home of Shaw Airforce Base) I just purchased my Syclone from Brian Cornelius in KY. I am looking forward to chatting and meeting some of you guys and gals in the future. I also own a 1992 Lumina Z34 / 5 Speed/ Black. I have had a lot of fun with it also believe...

Hello to everyone in the group. I just purchased # 1096 from Brian Cornelius in Kentucky. I live in Sumter S. C. I have become a very popular guy around Sumter in the last few days. I have been stopped numerous times with questions about my Syclone. I went by our GMC dealership to see about an...