Guest Anonymous Posted April 16, 2000 Share Posted April 16, 2000 I'm seriously considering this powerplant for my current project but am wondering a few things. The first of which is the HP and torque figures for JS's Blown engine. I also was wondering whether the bellhousing pattern is the same as a small block V8? Would a WC T5 be enough tranny for a blown-intercooled 4.3 or am I still looking at a 6 spd? I'm not looking to be cheap here..but the 5 spd weighs less and costs less too if it is an option. Any help would be great! SpencZ MonsterZ Cont. Quote Link to comment Share on other sites More sharing options...
John Scott Posted April 16, 2000 Share Posted April 16, 2000 Spence I've never been to a Dyno. The stock Syclone motors @ 14 psi were suppossed to have 360 lbs/ft, 280hp @ under 5000 rpm!. I've been quizzing the Ty/sy folks pretty hard over the same question. Most that have chassis dyno'd their trucks have reported closer to 400 and above and 295hp @ the rear wheels. The guys running the bigger boosts, 20 lbs, are reporting 500 and more. I left an email with a T5 builder with the same question. He uses the new hardened shafts, and the countershaft bearing support. I 'll have an answer next week on his opinion. I like the weight of this trans too, but need the durability ? answered. I think my hp is in the low to mid 300s at our 5000 ft, but until I can get it on a dyno, or the track, those are just estimates.(I hope I'm being conservative here) I wish I could give you a ride in it! If you have the works balanced, and get the 4 bolt conversion, I promise the engine will not dissapoint you! The 4.3 is identical to the smallblock on all mounts and bolt patterns. Yes any trans bellhousing for the smallblock will fit the 4.3 Same w/ flywheels,clutches starters etc. Internals are pretty much smallblock too. If you need some more info on the parts and pieces, pistons,rods, cams, distrib.....let me know! John Scott [This message has been edited by John Scott (edited April 16, 2000).] [This message has been edited by John Scott (edited April 16, 2000).] [This message has been edited by John Scott (edited April 16, 2000).] Quote Link to comment Share on other sites More sharing options...
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