[Sirrotica]

If you think LS engines never have internal troubles, your living in a dream world. Google LS common problems, that ought to get you started.

By the same token if you had a 5-600 HP LS engine, or for that matter a SBC you wouldn't take it on a 1000 mile trip either. You get over 450 HP on any engine platform and it gets less and less reliable, no mater if it was made in 1970 or 2020.

I own Stratostreak powered, cars as well as an LS GTO, and BBC in a dually truck, plus 2, 6.5 Detroit Diesel trucks and a 7.3 IDI International Harvester wrecker, Add in a Toyota powered Pontiac Vibe just for good measure. I own a good cross section of cars and trucks, I've also raced cars, notably Pontiac powered ones. I also have twisted wrenches for my living for over 50 years, seen a lot of stuff break, and had to fix it when it did, no novice here.

Lowest mileage car I own has 148,000 miles on it, the highest 350,000, most are over 200,000 miles. Mostly built with OEM parts. No one expects to take a race engine and go on vacation with it, use some sense here. A LS race engine isn't going to go 1000 miles any more trouble free than a 50 YO Pontiac engine is.

How many 700 plus HP suoercharged Challengers are going to see 200,000 miles? likely zero. You start stressing parts that much and stuff breaks, no matter who made it, engineered it, or what materials it is made from.

I own an LS engine for 18 years now, If I start pushing it much over 450 HP, I expect the weakest link is going to show up.

I spend a lot of time around 410 Sprint cars, which are for the most part SBC based with all aftermarket parts. 900-950HP naturally aspirated on methanol, best parts money can buy. They get 15-20 nights out of one before it starts loosing power, and has to go in for a refresh. One night is approximately 50-55 laps per night of racing, or about 1000 laps before it needs to be gone through. Mileage,3-400 miles between refreshes.

The Sprint car world tried switching some teams over to LS power, the SBC based engines lasted longer than the LS based engines did. You probably didn't know that little tidbit, but it happened.

The more power you ring out of an engine, the more they are likely to fail, it's just that simple