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-   -   most powerful production NA engine. (https://www.homemadeturbo.com/general-discussion-6/most-powerful-production-na-engine-42899/)

PoorMansPorsche 07-17-2005 11:00 AM

most powerful production NA engine.
 
http://www.gizmag.com/go/4286/

I had a hard time believing 530 was the tops.. but.. I looked around and couldnt find any production engine higher.

kain 07-17-2005 11:16 AM

Re: most powerful production NA engine.
 
clusterfuck

PoorMansPorsche 07-17-2005 11:56 AM

Re: most powerful production NA engine.
 

Originally Posted by kain
clusterfuck

worthless comment

IndianRide 07-17-2005 12:13 PM

Re: most powerful production NA engine.
 
na=worthless

J-SMITH69 07-17-2005 12:30 PM

Re: most powerful production NA engine.
 
the all aluminum 427 in some of the 69 vettes produced upwards of 600horse, althought rated far far under that

some of the 454s upwards of 600hp and torque too.

i think the new z06 engine will outperform that one when it comes out.

kain 07-17-2005 12:31 PM

Re: most powerful production NA engine.
 

Originally Posted by PoorMansPorsche

Originally Posted by kain
clusterfuck

worthless comment

no its not actually. look at the damn engine. its a clusterfuck. in all seriousness i dont like things that complicated. ill have to do a turbo upgrade on my brothers wrx and thats pretty clustered but its pretty simple./ too many hoses is simply retarted.

PoorMansPorsche 07-17-2005 02:07 PM

Re: most powerful production NA engine.
 

Originally Posted by kain

Originally Posted by PoorMansPorsche

Originally Posted by kain
clusterfuck

worthless comment

no its not actually. look at the damn engine. its a clusterfuck. in all seriousness i dont like things that complicated. ill have to do a turbo upgrade on my brothers wrx and thats pretty clustered but its pretty simple./ too many hoses is simply retarted.

well Im taken aback kain.. I had no idea you have simplicity down better then some of the finest engineers the automotive industry has.. no please by all means elaborate beyond your claim that "all those hoses" makes this engine a "clusterfuck"

J-SMITH69 07-17-2005 02:18 PM

Re: most powerful production NA engine.
 
all aluminum 427 from the 69 corvette makes gobs more hp than that and gobs more torque.

pushrods, carb, wedgehead ;)

PoorMansPorsche 07-17-2005 02:20 PM

Re: most powerful production NA engine.
 

Originally Posted by random-strike
all aluminum 427 from the 69 corvette makes gobs more hp than that and gobs more torque.

pushrods, carb, wedgehead ;)

yeah yeah..that things is going to be 50 state legal.. by the time it hits our shores.. something the 427 never was.

J-SMITH69 07-17-2005 02:22 PM

Re: most powerful production NA engine.
 

Originally Posted by PoorMansPorsche

Originally Posted by random-strike
all aluminum 427 from the 69 corvette makes gobs more hp than that and gobs more torque.

pushrods, carb, wedgehead ;)

yeah yeah..that things is going to be 50 state legal.. by the time it hits our shores.. something the 427 never was.

ahah tha 427 was 50 state legal in 1969 hah

J-SMITH69 07-17-2005 02:25 PM

Re: most powerful production NA engine.
 
632 c.i.d. "Monster Merlin" - 780 HP on Pump Gas!
http://www.theengineshop.com/engine4.shtml

Bill Mitchell's brawny 427 c.i.d. small block can deliver over 500 horsepower
http://www.worldcastings.com/new/feature0307.shtml

HMT-Admin 07-17-2005 02:42 PM

Re: most powerful production NA engine.
 
I didnt know GM had anything from the factory that was over 500hp (stock rated)

??

PoorMansPorsche 07-17-2005 02:50 PM

Re: most powerful production NA engine.
 

Originally Posted by AbaZ
I didnt know GM had anything from the factory that was over 500hp (stock rated)

??

Yeah I dont know either way.. so if johnny says they do.. its whatever to me.. cause Im too lazy to look it up.

J-SMITH69 07-17-2005 03:41 PM

Re: most powerful production NA engine.
 

Originally Posted by AbaZ
I didnt know GM had anything from the factory that was over 500hp (stock rated)

??

no i never said they were rated at that.

they made around and over 600 horse but were rated back in late 60s early 70s far lower for insurance reasons.

the only thing GM made production that is rated at 500 horse or close is the c6 z06 and it hasnt came out yet.

the all alum 427 and some of the 454s made close to 600 horse stock.

Chris Harris 07-17-2005 03:46 PM

Re: most powerful production NA engine.
 

Originally Posted by random-strike

Originally Posted by AbaZ
I didnt know GM had anything from the factory that was over 500hp (stock rated)

??

no i never said they were rated at that.

they made around and over 600 horse but were rated back in late 60s early 70s far lower for insurance reasons.

the only thing GM made production that is 500 horse or close is the c6 z06 and it hasnt came out yet.

the all alum 427 and some of the 454s made close to 600 horse stock.

Is the Z06 an 8 cyl??

This didnt claim to have the highest output NA motor...just the highest output V8 naturally aspirated ;)

I'll take two please :)

J-SMITH69 07-17-2005 03:47 PM

Re: most powerful production NA engine.
 
L88 427
600 @ 5800
550 @ 4000
12.5:1
4bbl Holley
Alloy Aluminum
Mechanical
Dual 2.0"
6qts w/filter
ACR43XL

L71 427
435 @ 5800
460 @ 4000
11:1
3x2bbl Holley
Alloy Aluminum
Mechanical
Dual 2.0"
6qts w/filter
ACR43N

L36/L68 427
400 @ 5400
460 @ 4000
10.25:1
2bbl Holley
Alloy Aluminum
Hydraulic
Dual, 2.0"
6qts w/filter
ACR43N


J-SMITH69 07-17-2005 03:48 PM

Re: most powerful production NA engine.
 

Originally Posted by xenocron

Originally Posted by random-strike

Originally Posted by AbaZ
I didnt know GM had anything from the factory that was over 500hp (stock rated)

??

no i never said they were rated at that.

they made around and over 600 horse but were rated back in late 60s early 70s far lower for insurance reasons.

the only thing GM made production that is 500 horse or close is the c6 z06 and it hasnt came out yet.

the all alum 427 and some of the 454s made close to 600 horse stock.

Is the Z06 an 8 cyl??

This didnt claim to have the highest output NA motor...just the highest output V8 naturally aspirated ;)

I'll take two please :)

yes it is a v8, 427cid 7.0l NA

J-SMITH69 07-17-2005 03:49 PM

Re: most powerful production NA engine.
 

Although few knew it at the time, 1970 marked the pinnacle of the Muscle Car era. Thereafter, rising insurance and fuel economy concerns effectively drove these cars to extinction, but, while the lived, muscle cars ruled the streets. At the top of the Muscle Car hill stood the awesome 1970 Chevelle ss454. When equipped with the LS6 option, the SS454 is likely the fastest production car ever built.

Truly the "ultimate" muscle car, the LS6 Chevelle did everything well. Handling, braking, and comfort were the strong points, but the LS6 454's forte was brute force and acceleration. Fed by a Holley 800 cfm four barrel carb, the LS6 was conservatively rated at 450 horsepower and 500 lb.ft of torque, but in reality it was much more potent. Cold air was fed into the carb by the cowl-induction louver in the hood which opened under heavy acceleration. Quarter mile times of just over 13 seconds at over 110 mph were easily achievable.

fork 07-17-2005 03:56 PM

Re: most powerful production NA engine.
 
1970 LS6
454 ci
450 hp
500 ft/lb




1970 Buick 455

350 hp
510 ft/lb at 2800



Quote from musclecar club .com


Chevrolet 427 ZL1 1969

The ZL1 engine was based on the regular Chevrolet 427 engine. However, instead of the regular iron-block and head L72 found in the regular 427 engine, the ZL1 sported aluminum heads and the first aluminum block ever made by Chevrolet. It shared the L88 aluminum head/iron block's engine rating of 430bhp but made closer to 500bhp -- making it probably the most powerful engine Chevrolet ever offered to the public. And the engine weighed just 500 pounds, the same as Chevy's 327 small block. The ZL-1 was made available only for 1969 under COPO 9560 and Chevrolet needed to install 50 copies to qualify the ZL1 Camaro for racing. Chevrolet eventually built 69 Camaros and 2 Corvettes with the ZL1 engine. ZL1 cars were blessed with a 5 year/50,000 mile warranty and were fully street legal. With factory exhausts and tires, ZL1 Camaros could turn low 13s; with headers and slicks, they could turn 11.6s @ 122mph. This was the fastest car ever produced by Chevrolet. Performance had its price - $4,160 for the ZL1 engine alone pushing the price of the Camaro ZL1 to an unbelieveable $7,200 (about double the price for a SS396 Camaro).

Ratings:
427 V8 430bhp@5200rpm, 450lb-ft@4400rpm

Installation:
1969 Chevrolet Camaros: 69.
1969 Chevrolet Corvettes: 2

Total Production: 71.

</quote>


And the new ls6 will be pretty much the best motor ever

Special FX 07-17-2005 04:04 PM

Re: most powerful production NA engine.
 
---- that, Ford FE-427 SOHC was over 600 hp and revved 7000+. Very simple adaptation of roller OHC heads to a basic side-oiler block. Ford ------- rules.

J-SMITH69 07-17-2005 06:12 PM

Re: most powerful production NA engine.
 

Ford's Single Overhead Cam (SOHC) 427 was based on the standard 427 FE side-oiler block, with a unique set of heads and a dummy cam stub in the usual position to drive a second timing chain 6-7 feet in length to spin the two overhead cams. Available over the counter from Ford for US$2,500, it made 616bhp @ 7500 with one or 658 bhp @ 7500 with two 780 vac-secs. A gilmer belt drive setup was offered by the aftermarket which solved the stretching problems associated with so much chain, something I just learnt from photos of Ron's SOHC for sale on ebay 08-Oct-2000. I'd love any other pics you guys may have to donate.
http://www.geocities.com/infieldg/images/427sohc.jpg

FURACERMAN 07-17-2005 07:24 PM

Re: most powerful production NA engine.
 
They came in (I believe) thunderbolts. I've seen dynos from those motors, on pump gas, where they make 500lbft+ from like 1200rpm, all the way to 9000rpm. The ford can-am 429s kick ass too.


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