no not all but all are at risk ,200 thou taken off aluminum bore greatly weakens block and makes it prone to crack ,we had big problem wwith fitting 3.9s into defenders in early 90s after boring liners out found cracks in ali bore and ali wall thickness the same as 3.5 ,lr swore was different casting and had thicker wall and issue was porosity ,if i wanted to win one race build a 4.6 if needed long term 3.5They are significantly more prone to liner problems but not every block will develops it particularly those with lambda sensors and or LPG
no not all but all are at risk ,200 thou taken off aluminum bore greatly weakens block and makes it prone to crack ,we had big problem wwith fitting 3.9s into defenders in early 90s after boring liners out found cracks in ali bore and ali wall thickness the same as 3.5 ,lr swore was different casting and had thicker wall and issue was porosity ,if i wanted to win one race build a 4.6 if needed long term 3.5
if your building a one race engine then the bigger bore sizes are better , if you need it to last in a road/offroad car then 3.5 is best all the way is what he is saying poah.
becuase they weaknd the block by over boring the 94mm bore and bigger engines have too many problems.
so he doesnt agree with you I am afraid, I know cos we were just talkin about it.
3.9 is basically a 3.5 cam with 2 degrees of advance not worth while fitting.
if you want to do the head work yourself check out this thread
The V8 Owners Forum - :: View topic - DIY head porting
nah, is true, not every single unit but most will have hgf,liner,block problems at some point.
wheras a minority of 3.5 will in comparison so for a vehicle which is used more than once for a race its best to stick with a 3.5 and just make it the best 3.5 you can.
poah, you can do what you like of course, its your time and money. just saying that 3.5 is more reliable although far from the perfect engine in the grand scheme of things.
also that if you going to throw thousands of pounds and hours at making a rv8 go and be reliable (if its possible) then it may well be better spent on making another v8 fit in- in more or less standard form
yeah , and it would sound great
its like a lot of things if you have the balls to start big it will pay off in the long run, start small and spend a fortune to get not much out of a rv8. sounds like pornstarmax has been there done that, I would ask him
it also depends what you use your truck for because you dont need silly hp for normal landy use
hmmmmm on the street you can use it, I like my 350hp bmw v8