LS1 - Block

i was browsing http://www.sdpc2000.com/ and i came accross this engine block "7.0L LS1, 4.125" Bore, C5-R Aluminum Cylinder Block" http://www.sdpc2000.com/catalog/1978/products/8227/70L-LS1-4125-Bore-C5-R-Aluminum-Cylinder-Block.htm and i was wondering if you build up on this block for max performance, would it be street legal? im pretty sure it wont be but i maybe wrong. does anyone know for a fact?

Mr.Luos is building up one of those bad boy, this would be better answered by him.

Talk about gas guzzler.... ha..

Talk about gas guzzler.... ha..

lol, but it will fit in the engine bay of a 4th gen... talk about a sleeper!

there's nothing wrong with a modded 427 on the street. I don't know the exact laws, but it takes a lot of power to not be street legal. this seems like a question for law enforcement. I'm curious myself, though.

Mr.Luos is building up one of those bad boy, this would be better answered by him.

thats what hes building up? sweet, i hopes its street legal, that would suck if he had to tow his awsome car to the track.

Actually , now that I think about it. I think he is building a iron LS1 block but I am pretty sure its a 7.0 . I am sure he will see this thread soon and fill us in.

I wish I could just slap a 7L v8 in my car.... That would be a nice sleeper... :evillol:

Actually , now that I think about it. I think he is building a iron LS1 block but I am pretty sure its a 7.0 . I am sure he will see this thread soon and fill us in.

ok, thanks, btw, how did you get your dog to sit there with those things on his head while you took a pic? my dog would give him self whiplash trying to get them off...

She actually loves stuff like that. I have put hats on her before and she has left them on the whole day. Yet with stuff like don't eat my socks she could care less.

Actually , now that I think about it. I think he is building a iron LS1 block but I am pretty sure its a 7.0 . I am sure he will see this thread soon and fill us in.
Mine is an iron blocked 4" bore. 402ci or 6.6L (roughly). Stroker crank.

427 outta the LS1 needs a resleeve. That gets WAY expensive.

You can make a 427 streetable. It depends on the cam for the most part.
Mine will be streetable. Not exactly legal, won't pass emissions. But if I put a VERY mild cam in it, it would probably pass.
Hell, it wouldn't pass the sniffer now with the smaller LS1 cam in it. Too much overlap.

Mine is an iron blocked 4" bore. 402ci or 6.6L (roughly). Stroker crank.

427 outta the LS1 needs a resleeve. That gets WAY expensive.

You can make a 427 streetable. It depends on the cam for the most part.
Mine will be streetable. Not exactly legal, won't pass emissions. But if I put a VERY mild cam in it, it would probably pass.
Hell, it wouldn't pass the sniffer now with the smaller LS1 cam in it. Too much overlap.

so it would never pass emissions? but what if you put like really crappy cat on there, one that is really restrictive... swap out the high preformance cam for a craper one of those, it still wouldnt be possible?

Do you have to pass emmisions in colorado though?...I know in Kansas you don't...

Yes, I have to pass emissions here in Colorado.

I figure I have the stock LS1 cam here, that should be enough to get me past. I will have gutted cats, so I will have them, those are just a visual check. Stock cam in a 402 should have little emissions. Car will also run like poo. No power.

My friend is exempt from Emissions. they cant fit his car over the rollers (90 (i think) trans am smokey and the bandit II) so he got a waiver. really not fair

the 427 LS1 should be legal, thats just the LS7 thats going to be in the new Z06. 500hp stock :iceslolan

i want one!! i got the caprice back too!!! btw u guys hear about the attacks in london

i want one!! i got the caprice back too!!! btw u guys hear about the attacks in london


how much damage was done to it? yea i head about thoes attack, atleast 40 ppl dead and 300 injured

the 427 LS1 should be legal, thats just the LS7 thats going to be in the new Z06. 500hp stock :iceslolan

so it should deff be street legal then, i cant wait to see the new vette in person, that engine is gonna be badass

Yeah, i heard about it. It's sad indeed. Massachusetts is on code orange terror alert now becuase of it. LSx=GOD!!

dude, the 427 can definatly be street legal. lingenfelter has been doin the swap for years now. he has a naturally asperated version at 500hp that gets 30mpg on the highway and runs an 11.47 second quarter mile. and passes emisions.

dude, the 427 can definatly be street legal. lingenfelter has been doin the swap for years now. he has a naturally asperated version at 500hp that gets 30mpg on the highway and runs an 11.47 second quarter mile. and passes emisions.
holy crap

sounds good, but is there anyother ls1/2/6/7 blocks that could be come more then a 427?

um, you mean like an after market stroker?/ obviously the resleeved 427 block offers the greatest displacement potential with the larger bores. but there are stroker kits for the original LS1 blocks for i think around 460cid.

the 427 LS1 should be legal, thats just the LS7 thats going to be in the new Z06. 500hp stock :iceslolan

Yea that new Vette pisses me off! Now that I get to where I can compete with most vettes they go and add another liter and another 100hp! Dammit. That's okay, that's where the 75-100 shot of NOS comes in... next year.

You have to admire Chevy though for making sexy supercars that can compete with just about any other supercar there is... with a much lower price tag.

http://www.canadiandriver.com/news/05toronto/images/z06_1.jpg

DAMN IT'S SEXY!

http://www.canadiandriver.com/articles/rr/images/06z06_1.jpg

the caprice needs, a fender, antenna, front bumper cover, and a door, all on the passenger side

I biggest outta the LS1 block is around the 490-500ci range.

Pretty sure I have heard of ONE LS1 block that was bored, sleeved, and stroked, and it was close to 500 cubes. If not right at it.

Most of the Lingenfelter 427's come with a fairly mild camshaft which enables them to pass emissions.
My 402ci will pass emissions with a stock LS1 cam in it, but not with my 248/254 in there.

dude, the 427 can definatly be street legal. lingenfelter has been doin the swap for years now. he has a naturally asperated version at 500hp that gets 30mpg on the highway and runs an 11.47 second quarter mile. and passes emisions.

*I wish* :eek7:

I biggest outta the LS1 block is around the 490-500ci range.

Pretty sure I have heard of ONE LS1 block that was bored, sleeved, and stroked, and it was close to 500 cubes. If not right at it.

Most of the Lingenfelter 427's come with a fairly mild camshaft which enables them to pass emissions.
My 402ci will pass emissions with a stock LS1 cam in it, but not with my 248/254 in there.

i tried looking for the 460cid stroker that 89 was talking about i couldnt find it, i tried looking for the 490-500 cid you was talking about i couldnt find it, i did see a 500cid caddy engine tho, if you happen to remember were you seen it, let me know. also if you did get the ls1 to 500cid what heads would you need?

If you got that motor that far.....it would be an all out race motor. Everything at that point would be VERY expensive!
Like I said, I am not sure of what the max cubes are. I have read somewhere it was close to or right at 500. Of course, that is sleeved, bored, and stroked.

i dont know if any of this means anything to u guys or if im just post whoring, but im lookin at an older gm high tech performance magazine right now. in it is a 99 SS with a 422 c.i. 700 horsepower LS1 and an 02 with a 382 c.i. 660 horse LS1. (both with N2O)
The black one was dynoed at 505 hp at the wheels. it has 5.3 truck heads to get higher compression from the smaller chambers.it uses a stock LS6 intake,a ported stock throttle body,a stock mass air sensor, and stock rocker arms.i just wanted to point out how may stock parts he used. for the record it was resleeved. he runs 10.5 at 136 with the nitrous. obviously he could have gone more extreme with it, but there r 2 big reasons i like it.he drives it 200 miles a week to work and back, and its a great example of how well engineered these engines r and wut their potential is.
the other one is an all bore engine that gets 24 mpg on the highway. 476 hp at the wheels with no juice.

At least in my state (get that out of the way) if you dont have to take echeck, you could run a 2000hp topfuel dragster on the street if you had turnsignals, headlights, bumpers, etc.

yup, my uncle had a 69 camaro, an original yenko ZL1 actually that he traded a set of tires for back in the 70's. the motor was long gone, in some guys racing boat, and it was already mini tub'd. so he turned it into an all out drag car 1050hp 500cid big block, ran mid 8 second quarter mile times, and was completely street legal in richmond, cuz they dont have emissions testing. it had seat belts, headlights, brake lights, turn signals, and big drag slicks with tred on them. we used to go out on I95 in it and embarrase sports car drivers :)

i dont know if any of this means anything to u guys or if im just post whoring, but im lookin at an older gm high tech performance magazine right now. in it is a 99 SS with a 422 c.i. 700 horsepower LS1 and an 02 with a 382 c.i. 660 horse LS1. (both with N2O)
The black one was dynoed at 505 hp at the wheels. it has 5.3 truck heads to get higher compression from the smaller chambers.it uses a stock LS6 intake,a ported stock throttle body,a stock mass air sensor, and stock rocker arms.i just wanted to point out how may stock parts he used. for the record it was resleeved. he runs 10.5 at 136 with the nitrous. obviously he could have gone more extreme with it, but there r 2 big reasons i like it.he drives it 200 miles a week to work and back, and its a great example of how well engineered these engines r and wut their potential is.
the other one is an all bore engine that gets 24 mpg on the highway. 476 hp at the wheels with no juice.
I plan on running in the 10's without the bottle. :icon16:

I will also be running the LS6 intake, ported stock throttle body, stock rocker arms, etc....
I have an 85mm MAF, but I wish I didn't. At least for my current mods.
I have a dream......500+ RWHP. No poweradder.
402.

Mileage wise.....My Trans Am gets roughly the same mileage as my 2001 Grand Am GT, if that tells you anything.

500+ rwhp??? thats like 650 or 700 naturally asperated hp, pretty ambitious dont you think??? but more power to ya. im lookin for 450 crank power out of my NA 302, methinks thats about 350 rwhp. ill be happy with that. at least for a few days ;)

actually with a stick thats closer to 600 - 615 at the crank which I consider totally doable with the right head/cam package.

I am actually thinking I will be closer to 475 RWHP. I will not have the 90mm FAST intake and throttle body for it right away.

I have heard of guys getting 550 RWHP with their 402/408 set-ups with higher compression and decent/good heads with a big cam.

I will be running AFR 225's (flow is 320cfm at .600) and a bumpstick that is rather large. 248/254 .629/.622 113.

Anything 475+ RWHP and I will be happy. I am not going to be running high compression, just right around stock. I want to be semi-friendly to drive on the street.

yeah thats true, i was thinking the drivetrain losses with automatics.

yeah thats true, i was thinking the drivetrain losses with automatics.
Well, I still hope the motor makes 575. I think it is do-able. I want to blow out my rearend quick. :uhoh:

BTW....Started her for the first time today in a couple weeks. Got that resistor put inline with the ignition cylinder. Now that problem is taken care of....time to start working on getting the motor out.

ah HA, so you did find the wires. its cuz i pointed em out in the picture right?????

Well, I still hope the motor makes 575. I think it is do-able. I want to blow out my rearend quick. :uhoh:

BTW....Started her for the first time today in a couple weeks. Got that resistor put inline with the ignition cylinder. Now that problem is taken care of....time to start working on getting the motor out.

awsome that you got it stared, but now your just gonna tear it apart so im not quite sure what the point in fixing that was.

lol, so that you have a clear starting point. so now if he puts it together again, and it dosnt start, he knows its not the vats system and he has another problem.

lol, so that you have a clear starting point. so now if he puts it together again, and it dosnt start, he knows its not the vats system and he has another problem.

well i hope after he puts it back together again, it start on the first try

It cranked over on the first try after the cam install.....so I can hope it will crank right over with this as well. :lol:

shhhhhhhh geeze guys, stop trying to jinx it......