Cup-A-Likes are nice
AO Silver Member
Join Date: Aug 2009
Location: United Kingdom
County: West Sussex
Bore & Stroke determine capacity.
Piston crown to head volume determine compression.
Fitting different length conrods & pistons with a different crown shape will only alter compression, if they'd even fit.
I've just checked & the VTR's pistons are 98mm...5mm bigger than the GTV's.
98mm bore & 72.6mm stroke(std 3.0 V6) = 3286cc
98mm bore & 78mm stroke(std 3.2 V6) = 3530cc
Last edited by CG Trading; 27-09-11 at 23:20.
Reason: add calculations