Herpa durpa duuuuuuuur 230 hp

"crowmolly" (crowmolly) 01/25/2018 at 18:32 • Filed to: None

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But it only makes 230 hp out of 454 cubic inches!

Motherfucker it’s a Mark IV/Gen V big block backed by a TH400/4L80 (in 91) and either 3.73 gears (90) or 4.10 (91+) in a 14 bolt rear (9.5" ring gear).

You can literally open a Jeg’s catalog and double this thing’s HP in a weekend- and not have to mess with the drivetrain. Maybe the torque converter.

This truck is, and always has been, tons of potential with a red bow on it.

Die-Trying > crowmolly 01/25/2018 at 18:46

3

shhhhhhhh........

some of us are still working on getting our hands on one....

there was one for sale here a few weeks ago. all kinds of beat up. but it had all the right equipment still on it. was sorely tempted.

but yeah, youre SPOT-ON....

My bird IS the word > crowmolly 01/25/2018 at 18:48

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The regular chevy 2500 of that vintage is the worst car I have ever driven. Seriously.

Jordan and the Slowrunner, Boomer Intensifies > crowmolly 01/25/2018 at 18:48

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Can’t the same be said about 350 powered trucks though?

HammerheadFistpunch > crowmolly 01/25/2018 at 18:49

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yuppity yup yup. do people not remember how engines were 30 years ago? Truck engine, truck power curve. Derp.

sony1492 > crowmolly 01/25/2018 at 18:49

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The internet is no place for opinions backed by facts, reason, or logic.

crowmolly > Jordan and the Slowrunner, Boomer Intensifies 01/25/2018 at 18:50

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No. Good luck with that 700R4, for starters.

crowmolly > HammerheadFistpunch 01/25/2018 at 18:52

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No joke. It’s like people don’t understand hot rodding at all. The same type of idiots spout off about mid 70's Vettes.

19JRC99 > crowmolly 01/25/2018 at 18:53

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Cool trucks. But I prefer the Gen I Lightning.

Jordan and the Slowrunner, Boomer Intensifies > crowmolly 01/25/2018 at 18:53

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Fair. That said, 4L80's are rated at like 425 ft lbs.

Urambo Tauro > Jordan and the Slowrunner, Boomer Intensifies 01/25/2018 at 18:53

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Depends on the year, but the 350 in my stock ’95 was supposedly rated at 200hp/300tq IIRC. It’s mated to a 4L60E and 3.42 rear.

Spaceball-Two > crowmolly 01/25/2018 at 18:57

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My dad had one when I was in high school and that truck was a fucking blast to drive! Summit white with a red interior.

crowmolly > Jordan and the Slowrunner, Boomer Intensifies 01/25/2018 at 18:58

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Most builders put it realistically at 500-600 depending on weight of vehicle and abuse. 3rd gear is the first thing that goes IIRC.

HammerheadFistpunch > crowmolly 01/25/2018 at 18:58

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I mean, Im kind of idiot and especially an idiot for hot rodding, but do people really think the 230 hp you get from a motor like this is comparable to the 230 hp you’d get from a high strung 4?

crowmolly > HammerheadFistpunch 01/25/2018 at 18:59

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Well, yeah, obvs. 230 = 230 bro!

Ssfancyfresh > crowmolly 01/25/2018 at 19:13

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Look at that thing. It’s glorious!

WilliamsSW > crowmolly 01/25/2018 at 19:29

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230 HP.

And approximately all of the torques. Gib

shop-teacher > Urambo Tauro 01/25/2018 at 19:44

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My dad had a new ‘95. I know you’re right about the HP rating, but I don’t think the torque rating was quite that high. High 200's I believe.

shop-teacher > crowmolly 01/25/2018 at 19:45

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Yeah, but there’s no talking to those idiots. I didn’t engage.

unclevanos (Ovaltine Jenkins) > crowmolly 01/25/2018 at 20:05

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It was a torque monster though.

Urambo Tauro > shop-teacher 01/25/2018 at 20:19

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Been a while since I looked it up, so I might have been rounding those numbers...

Hm, now that I revisit it, I’m getting some conflicting info. This ItStillRuns page on 1995 models lists them by compression variant and claims 180hp/295tq for my C2500. But I’m also seeing some forum members say it’s 200-210/300. To support that, here’s a nice organized chart with figures “straight out of a GM Factory Service Manual”, that even lists my engine’s LO5 RPO code. BUT that chart is for previous-gen trucks...

I’d like to think that being a ’95, and therefore one of the last TBI/flat tappet 350s, it would be at the high end of whatever stock figures come up for LO5. Hard to find an authoritative source to confirm, though.

Frank Grimes > crowmolly 01/25/2018 at 21:02

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 this 454 made 335hp on the engine dyno but the torque was 485ft/lb swap heads and cam mae 567hp and 537 ft/lb.

i feel sorry for anyone who left these things stock.

http://www.hotrod.com/articles/bolt-230-horsepower-454ci-motor-home-big-block/

Smallbear wants a modern Syclone, local Maple Leafs spammer > crowmolly 01/25/2018 at 21:23

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Yup. However.

That’s 230hp@3600 RPM. And that’s not the best part...

Torque. 385lb-ft of it. At SIXTEEN HUNDRED RPM.

yum

Smallbear wants a modern Syclone, local Maple Leafs spammer > HammerheadFistpunch 01/25/2018 at 21:24

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385lb-ft@1600RPM.

Works for me.

Smallbear wants a modern Syclone, local Maple Leafs spammer > WilliamsSW 01/25/2018 at 21:25

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385@1600RPM, to be exact.

WilliamsSW > Smallbear wants a modern Syclone, local Maple Leafs spammer 01/25/2018 at 21:44

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Yea that’ll do.

camaroboy68ss > crowmolly 01/25/2018 at 22:37

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ahh the 700R4, biggest piece of crap that has bolted up to a motor. Hate those things, never had a good one. That’s why the 90 SS454 is the only good one of the bunch. They had TH400's, the 91-92/93's had the 700

camaroboy68ss > crowmolly 01/25/2018 at 22:43

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I love these trucks, especially the 90 version. They looked great bone stock, maybe a slight lowering but I cant stand how almost everyone of them has a cowl hood, roll pan instead of a bumper and clear lenses. Good clean original or barley modified versions are really starting to climb in value.

Danger > crowmolly 01/25/2018 at 23:07

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Yeah, like when people laugh at 245hp Grand National, ignoring the 350 torques. Shit was 30 years ago.

TheD0k_2many toys 2little time > crowmolly 01/26/2018 at 04:01

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or just buy a real truck. Like a powerstroke

shop-teacher > Urambo Tauro 01/26/2018 at 06:54

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Let’s just call it 200/300 then. Close enough!

diplodicus > crowmolly 01/26/2018 at 08:47

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There’s a dealer in my town that has one. Want’s about the same as the guy crazie canuck posted but 50k less miles.

https://www.bobfoxautosales.com/1990_Chevrolet_CK%201500%20Series_Port%20Huron_MI_2147689.veh

HammerheadFistpunch > Smallbear wants a modern Syclone, local Maple Leafs spammer 01/26/2018 at 11:12

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That’s 118 hp at stall speeds. So hot.

Jake - Has Bad Luck So You Don't Have To > crowmolly 03/05/2018 at 17:32

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trans death can be avoided with aggressive torque management in tune. With hopped up FWD 3800 engines we tune the 4T65e-HD to have an incredibly aggressive kickdown because ANY lug in 3rd gear = instant trans death when you start putting 350whp through these things. I’m developing electronics to easily mate up 3800 Series 2 engines with the 4t80e that lived alongside the Northstar and is SUPER plentiful due to being an unstoppable force of nature trans attached to a glass cannon engine.