383 or 5.3?????????

[highperf4x4]

Originally Posted by americanmusc1e

yeah, I've had some problems tuning my holley for below 50 degree weather. and I think the 6.0 would get a little better mileage.

I'd put a BB 502 or a 454/427 small block in my truck if I had the money(that's what I think of gas mileage), but I'm on a budjet.

Bro if it's budget you're worried about, I'd definitely go with the gen1. You are already set up for that and you already have the block, heads, pistons. Even if you don't go with the 400 crank, you still can make excellent power from your 350. I know you said the block was bored .060 but as long as you don't overheat the engine from a coolant problem you'll be fine. Like Jim said, if the engine is built right and you maintain it properly, it will outlast your truck.

['72customdeluxe]

On a budget, gen 1 is for sure the way to go. You have the stuff already and if you're not liking what your engine builder has to say, there are many rotating assemblies and short blocks online cheap

[Jim_PA]

Originally Posted by '72customdeluxe

There are many rotating assemblies and short blocks online cheap

Personally, I'd stay away from that, unless you have the know-how to go over everything yourself. You could end up with a $500 boat anchor in a few short years.

I paid $2000 to have my short block done (stock rods, crank and hyper pistons, new balancer, probably some other add-ons...), and I had him do the cam and timing set... I bolted on the rest after he inspected my heads. It seems like an expensive price tag next to some mail order or online deals, but I know for a fact that mine was gone over with a fine tooth comb, and balanced properly before I picked it up.

There are probably many good cheap short blocks out there, but knowing the reputation and quality of the job I got was worth the money. If I could go back 5 years, I would have at least priced out the option of going to a 383, but at the time, I wasn't even prepared to put down 2k on a 350.

[jim zag]

You can build a 383 on a budget. You first need to make up your mind and have a PLAN! The beauty of a 383 is it makes more TORQUE! You can get decent mileage BUT it's more fun with your foot on the floor! The engine in my truck is simple and cheap to duplicate! It rins awesome!!!!!

[ap2002]

Originally Posted by highperf4x4

Ok here ya go. 3700 lb truck, no brake burnout and rolling 25mph!!!!!

Listen to his specs. It's about the same engine I could build from muscle's current motor for less than 2000. You can fast forward to the end for the burnout if you're gettin antsy!!



YouTube - 383 STROKER BURN OUT


Now top that you 383 haters!!

Just kidding.

my 6.0 can do rolling burnouts from 30+mph! with street tires a little power any truck will light the tires up like that....!

[ap2002]

lol.... wow all these these videos! well let me be the first to put a video of my white truck. its a 6.0 with cam only done to the motor, stock heads with full bolt-ons... did i mention it fully streetable and it weighs over 5000lbs street weight! how more reliable and powerful can you get?

here is some videos of my truck... its a 6.0 LQ4 out of a 05 Cadillac Denali... the grey truck is my friends, that truck has a LS1 with heads/cam and runs 12 flat....

HRP vids :: AP's truck, Flaco run video by...

HRP vids :: Flaco 12.5 run video by tx_tootall -...

HRP vids :: Stew 12.55 AP 12.43 (Kevin driver)...

and last, is one of my 11sec runs on the nitrous...

HRP vids :: AP NO2 11.93 video by tx_tootall -...

by the way guys, im not bashing no ones opinion! im learning alot of this website from you all, but i do know a fair share about these new LS motors and like mentioned in previous posts, LS motors are the futures performance motors!

[highperf4x4]

Originally Posted by ap2002

my 6.0 can do rolling burnouts from 30+mph! with street tires a little power any truck will light the tires up like that....!

Make a video of that.

[Dave Reed]

Originally Posted by highperf4x4

Like I said, it was just for kicks. Let's not argue just because we have different opinions.

In my previous posts I stated that I could build a 383 with over 400hp (about 420hp actually) with the block, heads, and pistons that he already has for less than 2000.00. I know this because I've done it. I started building performance engines 20 years ago. The video was just a kicker to show what could be done with a 383 for fun. I have no idea what they want for that motor. You might call them up for their price and then try to locate a 5.3 turn key motor with 486hp and 500 ft lbs of torque that will run on 89 octane and compare the prices if you get bored.

I am a little confused why you think I am arguing? Trust me that isn't close.
This is just a lively debate. I am strictly trying to stay on point.

There isn't any such thing as a 5.3 with 486hp (out of the junkyard), but there also isn't any 383's for $500 with 486hp. Let's compare apples to apples. You can build a 383 for $2000, than I will take one please. The problem is he isn't doing the building. You can get a 5.3 swap for about $500. Then there are the auxillary parts. Which from what I have seen on LS1tech can be as low as $1500 including the motor. Now he won't have the power of a 383, but he can drop heads and a cam in himself. Not real difficult and make as much power as the 383 with the fuel injection. We all have a computer or we wouldn't be talking so he can easily tune it to. I am not knocking your 383, but IMO the LS motors are the wave of the future. If he isn't building the motor himself than the $2000 that you keep mentioning doesn't come into play. That is the only point I am trying to make and point out that 383 isn't a viable option when comparing the cheap LS swap.

We can compare HP and then we can compare $, but we are not comparing the both in the same context when you take out the build factor.

I am all ears if you have another solution. Maybe you could build his 383 for $2000? That would be a good alternative for him.

C'mon help a fellow board member out!

[highperf4x4]

Originally Posted by ap2002

lol.... wow all these these videos! well let me be the first to put a video of my white truck. its a 6.0 with cam only done to the motor, stock heads with full bolt-ons... did i mention it fully streetable and it weighs over 5000lbs street weight! how more reliable and powerful can you get?

here is some videos of my truck... its a 6.0 LQ4 out of a 05 Cadillac Denali... the grey truck is my friends, that truck has a LS1 with heads/cam and runs 12 flat....





and last, is one of my 11sec runs on the nitrous...




by the way guys, im not bashing no ones opinion! im learning alot of this website from you all, but i do know a fair share about these new LS motors and like mentioned in previous posts, LS motors are the futures performance motors!

Ok, so what's the price tag on your cadillac engine with the "cam only" upgrade? And what did you have in your truck before, a gen1 or ?????? did you put in electric fan, electric fuel pump, new computer, new torque converter, new wiring harness, new engine mounts, accessories, fuel injection? Yeah, I'm guessing there's way more than 2500.00 under the hood of your truck dude and you didn't start with a 1972 chevy pickup. That's what we're talking about here. Before you get youngster turning his truck into a money pit that will take him a year to finish, show him your monster 72 with the LSx upgrade and a price tag of less than 2000. Because he can drop in a "brand new" gen1 engine which his truck already has in it for less than that and have it on the road quick!

[highperf4x4]

Originally Posted by discreet007

I am a little confused why you think I am arguing? Trust me that isn't close.
This is just a lively debate. I am strictly trying to stay on point.

There isn't any such thing as a 5.3 with 486hp (out of the junkyard), but there also isn't any 383's for $500 with 486hp. Let's compare apples to apples. You can build a 383 for $2000, than I will take one please. The problem is he isn't doing the building. You can get a 5.3 swap for about $500. Then there are the auxillary parts. Which from what I have seen on LS1tech can be as low as $1500 including the motor. Now he won't have the power of a 383, but he can drop heads and a cam in himself. Not real difficult and make as much power as the 383 with the fuel injection. We all have a computer or we wouldn't be talking so he can easily tune it to. I am not knocking your 383, but IMO the LS motors are the wave of the future. If he isn't building the motor himself than the $2000 that you keep mentioning doesn't come into play. That is the only point I am trying to make and point out that 383 isn't a viable option when comparing the cheap LS swap.

We can compare HP and then we can compare $, but we are not comparing the both in the same context when you take out the build factor.

I am all ears if you have another solution. Maybe you could build his 383 for $2000? That would be a good alternative for him.

C'mon help a fellow board member out!

I'm gonna start by saying I don't appreciate your sarcasm. You provide me with your vortec heads, your already bored block, and your flat top pistons and I will most certainly build you a 383 for ""LESS THAN"" 2000.00. Now if you're not really in the market for an engine then don't bring it up again.

If you're so dead set on his LSx upgrade then how about you help a board member out and go get an LSx installed for him for less than 2500

[highperf4x4]

I'm gonna unsubscribe to this thread. It's just getting under my skin.

Good luck on your engine muscle1 and let me know which route you go. I'll be looking for your build thread.

[70cst]

Guys this is a good debate with good info but we must remember we all have different ideas and experiences with these motors. What works for one may not work for another. Me...I am happy with my factory 402BB.

[Dave Reed]

Originally Posted by highperf4x4

I'm gonna start by saying I don't appreciate your sarcasm. You provide me with your vortec heads, your already bored block, and your flat top pistons and I will most certainly build you a 383 for ""LESS THAN"" 2000.00. Now if you're not really in the market for an engine then don't bring it up again.

If you're so dead set on his LSx upgrade then how about you help a board member out and go get an LSx installed for him for less than 2500

There isn't any sarcasm there at all. I don't understand why you are so upset. I am only trying to compare apples to apples. Here is the link to installing an LS series motor into any vehicle for less than $1500, http://www.ls1tech.com/forums/conver...de-1500-a.html. Now I am talking about a whole motor from scratch. I am not talking about parts already in hand. It took me so long to type that last post, you had replied a few times before I got my point across. So if you want to truck your vehicle to my house in CT I would be more than willing to help you out an LS into your truck for less than $1500 with the link in my post. I would love to have that experience. Helping a board member out and learning a lot. No sarcasm in that statement either.

I am sorry, but I would rather have an LS in my 1972 then a 383. So I won't mention you building me a motor again.

Again sorry that you feel you need to unsuscribe to a thread based on me stating my opinion about what could be.

Dave

[ap2002]

wow, this got a little too personal for some on this thread... i'll just stop giving out my opinions.... i'll just stay under the radar and keep learning from you all..... just thought i could give a little experience....

[UltraBlue71]

I love the 5.3 in my 02 Tahoe 125K on it and she runs as strong as ever, I wish I had on in my 71, no sputtering old cold blooded manual choke 350, what a loss! but 383's are fun too, IMO you'll get ALOT more longevity out of the 5.3 than a stroker motor.

[mikajo39]

just grab this and call it done http://www.yearone.com/serverfiles/p...26DK73495&trk=

[americanmusc1e]

Originally Posted by mikajo39

just grab this and call it done http://www.yearone.com/serverfiles/p...26DK73495&trk=

I couldn't get your link to work

[mikajo39]

thats strange try this one http://www.yearone.com/serverfiles/f...p?pid=CT350PC1
it's yearone's power crate 350 incase you still can't get it to work. its 400+hp/400+ftlb for 2900 doesn't include carb distributor fuel pump or waterpump but im pretty sure you have that. looks like a good deal to me and i've talked to a guy who has one and he's pretty darn happy with it
just another possibility it looks nice though. late model roller cam block with 4 bolt mains and its bored 30 over

[brad_man_72]

lets say you can build a new 300 hp 383 for $2500. and you can put a junkard 300 hp 5.3 in your truck for $2500. i think those are realistic numbers.

the ls engine will take much longer to get running.

the 383 wont get 20mpg

epensive tuning. some places charge less than $400 to cut down your harness (eliminate vats, and any unnessecary wiring or systems) that includes unlimited free retunes for when you want to change your mods.

bottom line isboth are viable options depending on your goals.

[jkade]

If you're so dead set on his LSx upgrade then how about you help a board member out and go get an LSx installed for him for less than 2500[/QUOTE]

They are installed everyday for less than $2500 if you bargin shop and can do the work on your own. If you go hog wild and pig crazy then you ain't going to install one of the motors for less than that. If you have a torch, welder, some wiring skills, basic handtools and common knowledge of how to install a motor there is no reason in the world you can't install a LS motor for less than $2000.

This subject is just like saying a ford is better than a chevy, not everyone is going to agree.

[jkade]

Originally Posted by highperf4x4

Ok, so what's the price tag on your cadillac engine with the "cam only" upgrade? And what did you have in your truck before, a gen1 or ?????? did you put in electric fan, electric fuel pump, new computer, new torque converter, new wiring harness, new engine mounts, accessories, fuel injection? Yeah, I'm guessing there's way more than 2500.00 under the hood of your truck dude and you didn't start with a 1972 chevy pickup. That's what we're talking about here. Before you get youngster turning his truck into a money pit that will take him a year to finish, show him your monster 72 with the LSx upgrade and a price tag of less than 2000. Because he can drop in a "brand new" gen1 engine which his truck already has in it for less than that and have it on the road quick!

Cadillac Engine = $1200 (car-part.com, ebay, craigslist, etc)
5.3 = $450-$700 if you shop around
Cam = $200 all day long used with a few miles on it. (ls1tech, performancetrucks.net, ls1.com, etc)
Electric Fans and Radiator for a Fbody (98-2002) = $100 (ls1tech, ls1.com)
Electric Fuel Pump--Walbro 255 inline = $115 shipped (ebay)
Engine mounting plates = Free (make them yourself with the diagram on LS1tech.)
Engine Mounts = $15 factory style from and parts store
New Computer tuned with everything you need = $150 (wait4meperformance)
Guages = $400 new
Misc (relays, painless 7 circuit fuse block for efi, connectors, air filter,etc = $300
If you have a th400 then spend another $300 and you are running driving and blowing 383's off the road (just kidding)
You can knock $600 - $750 off that if you do a 4.8 or a 5.3 and you be patient and bargin shop for the parts to complete the swap. This is just my experience and maybe I got lucky.

[jkade]

Originally Posted by '72customdeluxe

Have you ever considered an lt1? A little simpler than an ls1 swap and the motor is cheaper too. You can atleast use your headers still. Just put in an o2 bung. They riiiiip too. Then you could have a fairly cheap 383 as well

No knocking a LT1 but they will not make the power a ls based motor will make. They are still a good choice though.

[jkade]

Originally Posted by highperf4x4

Ok here ya go. 3700 lb truck, no brake burnout and rolling 25mph!!!!!

Listen to his specs. It's about the same engine I could build from muscle's current motor for less than 2000. You can fast forward to the end for the burnout if you're gettin antsy!!



YouTube - 383 STROKER BURN OUT


Now top that you 383 haters!!

Just kidding.

You need to get a hold of the guy that bought my 67 with the 4.8 I turned into a ls1 and I think that might just change your mind a about a ls based motor. That truck would break the tires loose running 35 and start looking for a ditch. That was both tires which were 12.5" wide. It would break loose running 55 on a wet road I don't have a video of a burnout just what it sounded like.

YouTube - 67 C10 LS1 Magnaflows

[philg]

how about a crate motor .

with 2000-2500 for short block.

500 dollars more for roller motor done .400 hp 440 tq
order it .shipping 500 bucks drop it in swap parts which already you have here ya go 2990 roller ready to drop in http://www.yearone.com/pco/P_0407/full.asp?page=4.
buy it drop it in.
save for ls swap later date. gather parts needed for swap.look for deals
i found easier to drive and gather parts instead of being apart.
sell old parts off old engine.

[philg]

thats strange try this one http://www.yearone.com/serverfiles/f...p?pid=CT350PC1
it's yearone's power crate 350 incase you still can't get it to work. its 400+hp/400+ftlb for 2900 doesn't include carb distributor fuel pump or waterpump but im pretty sure you have that. looks like a good deal to me and i've talked to a guy who has one and he's pretty darn happy with it
just another possibility it looks nice though. late model roller cam block with 4 bolt mains and its bored 30 over

opps i didn't see that i agree.