How much power can a 2-bolt 454 handle?

[malcolm]

I've got a 2 bolt 454 block that I would like to build up to replace my little Olds next year. How much power can I build into this thing with an ARP stud kit. I'm not planning on going past 500 horse. How hard is it to replace the wide 2 bolt caps with 4 bolt-ers?

[InKahntrol]

Malcolm,
You should be fine using a sound 2-bolt block with 500hp. Unless you're planning a high-compression undurance motor, 2-bolt mains and an ARP stud kit will work great. My last engine was a 468 with 10.5:1 compression, big roller cam and heavily ported square ports, and it made 585hp on the dyno. It had two bolt mains with ARP head and main studs, and it lasted for years (and is still running to my knowledge). Get a good line-bore and have the block squared and you should be good to go.

[GofastRacer]

I've got a 2 bolt 454 block that I would like to build up to replace my little Olds next year. How much power can I build into this thing with an ARP stud kit. I'm not planning on going past 500 horse. How hard is it to replace the wide 2 bolt caps with 4 bolt-ers?
I've run a 2 bolt with studs at 7500 no problems with 600hp!...Both blocks are the same all you need is a set of 4 bolt caps, drill and tap for the extra bolts, naturally you will need a line hone!...If you're not going over 500hp and not zingin the motor to the moon, save the money for something else!..

[Squirtin Thunder]

I think it is pushing it at 185HP !!!!
Jim

[GofastRacer]

I think it is pushing it at 185HP !!!!
Jim
:confused: :confused: :confused:

[malcolm]

Sounds good. I was thinking oval port open chambers, around 10:1. Think I'll make it?

[Squirtin Thunder]

Thats what you chevy guys get when a FORD guy is around !!!!! :boxingguy :boxingguy :idea: :hammerhea :hammer2: :lightsabe :D
Jim

[Jordy]

You can always count on the ford guys for helpful tech information... :rolleyes:
If you want to go really trick if you decide to change your block over, go with the splayed caps. For what you're looking to do, I wouldn't worry about it though. :D

[MikeF]

Mob Rules! :skull: :D

[Squirtin Thunder]

Didn't the big dodges have those from the factory???
Everything gos back to the dodge boys !!!! YukkkkYYYYYY !!!!!
Dammit I hate it when they are around they leave so much Ram shit laying around.
Jim :idea:

[bigkatboat]

454 .030 over, large oval port heads (049's?) big valves, 10.25 forged pistons, (2449?), polish and shot peen rods, ARP rod bolts. Port match, CC chambers. Stealth big port manifold (or LS7) to heads. 850 Holley carb (82 pri., 4.5 PV, 85 sec) Electronic dist (HEI?) 10 base, 34 degrees @ 2500RPM's. Isky "280" flat/ hydraulic, 565/565, 232/232@ .050". "Throw in" @ 2 degrees advanced. 120 lbs spring on seat, 330/350 lbs over the nose. Good oil pump, OIL COOLER! 541 HP @ 6400 on 91 octane. 600(aprox) foot @ 85 degrees. corrected. That 'cast stuff' likes it! Idles like a top fuel dragster! NOT for prop boats!

[malcolm]

Thanks for the recipe bigkat, sounds a lot like what I want to do. There's a local swapmeet this weekend. I'm going to be looking for a set of heads to replace my peanut port truck heads. What are the best numbers to look for? 049's?

[flat broke]

Not to be a dick, but BigKat's recipe isn't going to work as well in your jet as it would in a v-drive. With an a impeller you'll be looking around 5000 rpm which is going to leave a lot of that motor's HP on the table. It would work great with a V-drive, but to get to 6400rpm on even a berk b on a solid pump, you'd need over 700hp (corrected). It's a good low buck recipe, but it isn't geared to a jet as well as other combos may be. Look for something that peaks under 6k and has a very flat torque curve.
Chris

[malcolm]

I didn't even notice the 6400 part. I was mainly talking about the oval port heads and the compression ratio when I said it sounded good. Yeah, I'm thinking more about 5700 rpm. My impeller is a B.

[spectras only]

Malcolm , long time no see ;) . Did you check the ZZ454/440 crate engine . We looked it up in the books and it's quite well priced for a complete engine. My LS-6 spun a bearing this summer ,so I've decided to buy another boat for my fix while rebuilding the busted engine.You want to buy a 24 spectra ;) :D .May go down to the new years fun run with the new to me boat. Brrrrr :supp: .

[moneysucker]

I know of a couple Blown injected 468's that have 2 bolt mains and between the 2 have run for 5 years. If you are woried about blowing your crank into the pan... In order for that to happen something catostrophic has to happen in the motor. If that happens, your motor is usually ruined before the mains go. Run the block you have. You won't have any probs with a 2 bolt.

[malcolm]

Hey Attila,
Sorry to hear about the mighty LS-6, what kind of Spectra are you going to pick up this time? Maybe a 20 jet?
My little Olds is still running good, it's just not fast enough. :D We did finally hit 53 on the GPS, probably the best the small block will do. I don't think the money will be there for a crate motor, and I like building my own engines anyway.

[396_WAYS_TO_SPIT]

malcom run it. You will be fine;) Alot of people underestimate the stock bottom end of a motor. When my olds came apart it bent the shit of the rod but she didnt let go :idea:
396

[lucky]

I didn't even notice the 6400 part. I was mainly talking about the oval port heads and the compression ratio when I said it sounded good. Yeah, I'm thinking more about 5700 rpm. My impeller is a B.
MY OLD JET - 10;1 LS 6 RODS STEEL CRANK COMP 305 581 LIFT 112 LOBES
SP HEADS - 5300 RBM WITH A WARM PUMP AND A/B IMPELLOR

[spectras only]

Malcolm , still have the 19' spectra jet to play with at the lake ,but need a true NW boat now with windshield, top ,heater and all to utilize it all year round ;) .I'll fix the LS-6 and put the boat up for sale in the spring. My old 20'jet is in good hands now and am getting this on the weekend .http://www3.telus.net/spectrasonly/mirage.nordic.jpg Twin 6.2 MPI's Bravo 1 legs

[dmontzsta]

Get a Ford.

[396_WAYS_TO_SPIT]

Get a Ford.
Why......................... they SUCK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
396

[Squirtin Thunder]

396,
That wedge came off a Big Bad Ford. So your boat should run much better.
Jim

[396_WAYS_TO_SPIT]

Awww jim your killing me :D :D .
so what your saying is that it WILL run better on my BIG BAD ASS CHEVY :D :D Jusss playin whichya jim;)
396
396,
That wedge came off a Big Bad Ford. So your boat should run much better.
Jim

[malcolm]

Attila, will you have to change your name? :D
I guess you could cheat and go to the Kia dealer and get a coupe emblems for it.
Don't get too pissy with me all you Ford guys, I'll be building one of them over the winter too (for Dad's boat).

[spectras only]

Malcolm , will stay loyal to the spectra name since still got two of those. One chevy and the other is a FORD :D .The ford still rocks.Sorry to rub it in,chevy guys :hammer2: :D .We'll see how long the 6.2 mercs will last in the new boat .Just broken in with less than 25 hrs :)

[Dave C]

Malcolm.... some of these guys are just no help! eh!... ;) :sleeping:
In a jet right?
I ran one of your motors in a jet boat for 7 years without a problem... Plus I added 150 shot of NOS to it and ran the sh*t out of it too and it was ALL cast. I beat the crap out of it and never had a problem. Plus my buddy had and did the same thing.
Like they said.. get a good line hone, put the good rod bolts in, cam it correctly and ENJOY.
You ABSO-****ING-LUTELY must have a good jet boat pan, like a Dooley, Canton, etc.
Buy all good new parts and put it back together correctly and you won't have a problem.
I've got a 2 bolt 454 block that I would like to build up to replace my little Olds next year. How much power can I build into this thing with an ARP stud kit. I'm not planning on going past 500 horse. How hard is it to replace the wide 2 bolt caps with 4 bolt-ers?

[moneysucker]

I figured I would hear all sorts of crap about running a 2 bolt. There will be no problem running a 2 bolt and it would be a waste of money installing splayed caps, Besides, the Cast and the steel used for the caps expand at different rates so just another potential problem. Oil pan was a good call.