410 Sprint Car Build Ep 14 Engine Build and Dyno

Hello everyone welcome to Speedway Motorz ​​and as some of you may remember about a year and a half ago we built a 410

sprint

car in association with the national

sprint

car hall of fame and museum and they have been touring the car selling raffle tickets and When we built the car we just built it like a roller, there was just a dummy block to hang the headers on and obviously for it to be a speed car it needs an

engine

. We're standing here next to this killer block 410 and Zack Woods is going to put this together for us Zach, what do we have here?

Like Joe said, we've got some amazing pieces here, starting with this Donovan 410 block, it's a work of art, it's a really nice piece, so we're going to put it on a Cali Magnum. xl crank, get some clevite bearings coated to size and start putting this thing together, as you can see here, this is not just an old cast iron small block chevy, you know, this is all CNC machined and in the end it will be Nice trick, right, yes, it will be an extremely good

engine

with over 900 horsepower and 700 pound-feet of torque. I mean, this is going to be amazing and I'm really excited to see how it turns out, so if we take a closer look at this.

Cali's Magnum XL crank is an eight-counter weighted crank with two additional counterweights. You know, it's all lightened and scalloped on all the counterweights. They help with harmonics and reduce weight. They did a great job balancing this, putting Mallory in and they had to do it. in four different shots to get it right but yeah this is a super nice crankshaft okay it's time to hang these dyer rods on these beautiful cp pistons the box forging pin fits them and it's Time to hang some pistons on some rods, so some of you might be wondering about these holes drilled in the top of the piston, they are called vertical gas ports and high pressure air comes in behind them and expands the ring against the solar wall, which helps seal the ring and increases power.

Let's talk about the rod for a Secondly, it is a very quality piece of the top dyers rods. We have them equipped with the arp 625 plus bolt and, uh, we installed some coated Clevite bearings, we have the proper clearances and I use them in late model 410 360 sprint cars, they are simply superior. - notch stuff, so we're grading this Steve Hugins ground camshaft, it runs 266 on the intake, 268 on the exhaust, it's at 109 charge separation, we're trying to get it around 105, the The intake cylinder's central cam is a 55-millimeter roller bearing. The camshaft has about 760 lift on both the intake and exhaust, so what we have is a set of beautiful heads made with single-weight technologies.

They are type 60 410 sprinkler heads and we are installing them with all the manly titanium intake, exhaust and valve train components. the valves mainly cover the valve springs or their super finish springs, long lasting high rpm, so I have already measured all the installed heights and we just had to put a 60 shim under here, the whole exhaust came out perfect, too we have maximum traction retainers. and then we top it off with some titanium valve locks manually, plus this is about as good as you can put on a small block chevy cylinder head, so we soaked our esky lifter in some oil here and these are easy to iski. red zone lifters with rollers, they are the best resistance lifters on the market, hands down, I put them on every resistance motor I can, late model sprint cars, you name it, let's put these steel rockers on top of These trendy pushrods, both the pushrods and these steel rocker arms will offer plenty of stability at these higher revs.

Some of the key features of these steel rocker arms are, for one, they are steel, so they flex less than aluminum and last longer, but they put the intake rocker arm on the bracket at an angle, so that there is less travel in the rocker arm, which makes the much stiffer piece lose less lift and it just doesn't flex as much, wear out and break parts, so it's all extremely nice. piece that goes into this Kinsler Beast injector, it's a 2 900 butterfly, uh, let's lighten up the hp lines. Oh it looks amazing but works great, it's the standard on 410 spring car racing.

It has been CNC compatible to fit these uni-directional heads. im going to make some serious horsepower ok its time to start using these lightweight xrp hoses. They have some of the best flow accessories in the industry. Light and durable hose, it is what I connect each engine with and we are lucky to have them help me with this. The project will drop our msd promag into almost all of the sprint cars in the Outlaw Tours that run an MSD Pro Mag. They are definitely the most reliable and best power generating magneto on the market. This is something exciting.

Now we have an engine that is ready to make noise. I'm super excited and not only is it going to make some noise, it's going to make a lot of noise, yeah it's going to be loud, this thing is going to make some horsepower, super excited, we were ready to make noise, we got, uh, we. We turned it on, let it

build

some heat, then cooled it again, retightened all the heads, relaunched the valves, put some heat back on it, the oil is heating up and yes, it's ready to break out the 950 disguise horsepower and just shy of 730 lb-ft of torque, unreal, it's a naturally aspirated small block chevy, unreal, well there you have it, 950 horsepower and it sounded amazing, yes this runs very Well, you know, in the motoring world they say that the top end makes all the power. and the bottom has to stay together and everyone did their job, that thing is flawless, I mean, everything looks great.

These unidirectional tech heads are obviously flowing some crazy air and matched perfectly with this kindler beast and steve huggins nailed it. on the camshaft, I mean, this thing is an absolute beast and there's no way a camera microphone is going to record what it sounded like, but it sounds amazing and it'll sound even nastier in the car, yeah, yeah, in the car it'll have further. Cut it, you know, without a

dyno

holding it back. It's going to be impressive. I can't imagine sitting behind that thing. Well the next step is to put him in the car, so we'll take him across the street and stab him thanks zach you