hey guys.. long story short im doin a 383 conversion into my vl and im about send my block n heads to get clearenced machined decked etc etc etc i got two blocks and sets of heads one out of a vr and one out of a vn.. just wanting to know is there any difference in the two? is it easier to get it engineered with the vn one cause its earlier or does the same regualtions apply to the series of motors? neither motor is anything special (not out of a clubbie etc).. any help would be greately appreciated.. Some original photos have not been recovered yet.

vn has less polution gear on it and i think vn computers are easier to work with

Same block same heads, the only difference was the computer which had more memory and capability including security which required an overide program.

thanks for the quick reply guys.... computer dosent worry me as ill be running a aftermarket ecu anyway just wanted to know if block/heads were the same now i know.. thanks alot guys much appreciated. Some original photos have not been recovered yet.

VN and VR blocks are not the same, VR block (and VS/VT) has factory rod clearance underneath for a 5.7 whereas a VN/VP block does not. If you are getting your block clearanced for a 383 then i suggest you start with the VR block as this will entail less work to clearance for the longer stroke of the 383. As for the heads yes they are identical from VN through to VS.