des90 Posted May 23, 2011 Share Posted May 23, 2011 I have been reading recently about 3.8 v8's using the 3.5 block and 4.2 crankshaft- has anybody got any details on this-ie what conrods and pistons etc We have a brand new 3.5 block here just dying to have something done to it!! Quote Link to comment Share on other sites More sharing options...
dirtyninety Posted May 24, 2011 Share Posted May 24, 2011 By using a 4.2 crank you are "stroking" the engine. Meaning you are making the stroke of the piston longer, thus increasing capacity. I imagine you would use 3.5 pistons, but unsure on conrods. Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted May 24, 2011 Share Posted May 24, 2011 Its nowhere near that simple - involves major machining work - and a 3.5 Block is weak as is pre crossbolted type Nige Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 25, 2011 Share Posted May 25, 2011 I think Real Steel sell "stroker" kits to do this with all the parts, from memory it's more cash than just buying a complete engine or even a whole P38. Quote Link to comment Share on other sites More sharing options...
des90 Posted May 25, 2011 Author Share Posted May 25, 2011 Yes i'v seen the stroker kits-crazy prices- rover appear to have stroked the 3.5 for the australian market-think it was called the iceberg engine and was used in the P76 model. Looking at the spec of this engine it seems to be a 4.2 crank and conrods with one off pistons. Now the 5.0lt is running brilliantly in the 90 i'm just working out a project with this 3.5 block- so looking for something a bit more exotic than just comp ratio/cam and head work Quote Link to comment Share on other sites More sharing options...
iomlt Posted May 26, 2011 Share Posted May 26, 2011 Twin turbo / supercharge a V8 is the future! Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 26, 2011 Share Posted May 26, 2011 Fine as a project for the hell of it but a naff way of getting a bit more oomph in terms of bang for your buck I'd say. Iceberg was the never-made diesel variant, the Aussie P76 was a 4.4 V8 with a longer stroke, I forget exactly what the difference was. Quote Link to comment Share on other sites More sharing options...
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