Catchpole

How many miles is too many miles for a motor to be built?

Slo5oh

What are you asking? Usually when a motor is built it has 0 miles...as in new. Big boy words will go a long way to get your point across.

GT350son

What he means is how many miles is too much to add performance to. Not to rebuild.

Portmaster

To add things like a H/C/I swap it all depends on the engine. A very well maintained engine will in most cases respond well to a head, cam and intake swap at 100,000 miles. An engine with 50,000 miles thats been poorly maintained and beaten on heavily may not do so well. It's a case by case thing. I've torn engines down with 150K showing on the clock that had been run on syn oil since day one and were kept up very well that looked like new inside. No bearing wear, cyl walls like new and used no oil. You could put a new timing chain on with the swap and go another 100K in it. There just is no set amoiut

mjr46

there are plenty on here who have done h/c/i with over 100k on the clock

luckythirteen13

do a compression test, if the numbers look good, who cares how many miles are on the clock

Catchpole

Thanks for bein a *****. To everyone else thank you for real answers.

Slo5oh

np at.

instead of saying something silly like, how many miles is too many for a motor to be built (which means nothing), why not say...hay guys, how many miles is too many to put a cam in my engine, or put heads on my engine, or etc. I was merely stating that using words that have no meaning don't deserve a real answer IMHO.

simpsonfan13

then why did you respond? snaps like this is the reason the 5.0 section is so infamous on the board. instead of saying " Big boy words will go a long way to get your point across." you could've said: "What are you asking? Usually when a motor is built it has 0 miles...as in new." and added "Could you be a little more specific on what you mean?"