Building An 8,000-RPM LS — LS5.0's Short-Block Comes Together

Excellent tutorial on the build. Looking forward to seeing the numbers.

YouTube Recommendations: "hey, you like mad scientist engine stuff, check this video out" Me: "yup, this is very in my wheel house."

Im a ford guy through and through, with that said my wife's first car was a 89 Camaro Rs. I've since picked up a good condition 92 5.0 rs with z28 rear end no engine or transmission very clean interior. I Modified the K member to accept Ls swap. I used a 4.8 block & bored it to fit ls1 pistons 3.8-3.9. Used a comp cam 218/226 .541/.541 & spring retainer kit. 4l60 with Quickshift controller & mild convertor ( 2400-2800). It shifts at 6800-7000rpm ( due to way to small of a cam) Car runs a 12.2-12.4 @ 111 ( dynoed here in Florida 332 whp @ 6700) on 3.08 gears with my wife driving with cats through a single mandrel bent 3 exhaust. Shes happy but your video makes me think about doing a proper build for her instead of the cheap as possible build. Its funny as on the fender it says 5.0 TBI when in reality its a ls with a sniper efi and just as fast as a scat pack on good tires.

It's funny how most people think that the 4.8L/3.268" Iron Crankshaft is weak, when in fact, I would put it up against a cheap chinese 4" stroke twist forged crankshaft any day of the week due to it having far more journal overlap and generally suffering from far less centrifugal forces than a larger stroked unit. We have all seen the 4.8L Stock Bottom end produce around 1700 HP in 'Squirrel Tuned' (Jack's) record holding Mustang in the 1/8 mile (I believe it hasn't been broken, either motor or record). The 'Big Bore' Iron 4.8L block/bottom end is and will always be one of my favorites in terms of budget builds, especially if you have a buddy that has a pulled set of LS1/6 Pistons to donate to your cause, that offer a 100% bolt-on experience as their pin height is the same, depending on press fit or floating pin models.

Your home shop is killer.

A 4.8 can make peak power at 7200 rpm with stock 706 heads. LS7 lifters will handle 8k with the lightweight stock 48mm valves. With ported heads it will make over 500 bhp.

I had this idea a number of years ago; to build a genuine 302 LS and put it into a 2010 Camaro. But I wasn’t willing to sell my Fox Mustang to fund it. Glad someone is doing it.

Super cool build of my favorite and most under appreciated LS engines, the four point Great !! A variation of this build I would love to see is the use of factory floated pin rods (we know they are good past 8,000 RPM), and flat top LS1/LS6 pistons !! I know there is always a push to use aftermarket parts for promotion, but I'm an old school guy who really appreciates the factory engineering in these parts and how they can be used/massaged to amazing results. Again, a super cool build !!

I’ve thought about this exact build since 2012, glad someone has the time and money to do it! and show us the process, Awesome build!

Brings to mind the Chevy 302s from 67-69.

Cool Project!

Great build! Love the detailed info. Lots of others shows leave out the actual build.

looking forward to the next episode

Awesome video bro

Great stuff

Cool build process 👍: I like those LS screamers.

Subbed. Super cool, man!

Amazing stuff !!

You`re the first engine builder in a home garage that mic`s parts like a machinist and not using them like C Clamps.

LOL....had you stabbed the cam first, you'd known to get your bolts. 😂😂😂 LOVING THIS!