I spent 161 for the crank, 184.00 speed pro pistons and 150.00 balancing, up it up, Yes I had a spun main so figured why go stock.

 

Your at $495 not counting hot tanking, bearings, rings, gaskets, assembley. Your gonna need an entire gasket set from top to bottom along with all new bearings, and a new oil pump (certainly not gonna use an old one so you can blow this engine too ?) hot tanking is necessary since you did spin a bearing and have metal all throughout the engine. How are the rods? Prolly not in good shape considering you spun a main, something had to go wrong. Resize rods maybe so they are actually round.
Whoops, spun a main, you are gonna have to have the block line bored for the new crank. Hell, i dunno where you can even get a new LT-1 383 crank from for that price.

If your set on doing this cheapo buildup, go right ahead. I got 150 miles out of mine before the crank broke and the bearings spun again. Spent $1600 and have one badass 350.

Not to sound like a smartass, but you need to look into what all goes into this, there are MUCH more than parts to building a good engine that you can get some miles out of.

-Shannon

 

Man your choking up that 383....put some LT Coated Headers(that will never rust, and only leak if not installed properly) and you'll gain probably close to 40 hp or so while having a badass sounding LT1 in the process....Id stay on this board and learn a little more about your engine....Headers in one of the most effective mods u can do

 

all the AFT, oils, plastiguage, coolant, and little things add up FAST. What about new bolts, studs, and all that. he is running an LT4 HC. How the hell did you pull that off?

I still want any 3.75'' crank for an LT1 for $161.

Yorkie, we aren't flaming you-
this is just hard to believe. You really should beleive us when we say you are looking for too much power in all the wrong places.
We've helped with a million 383 build ups here.

 

Before you start calling people liars why dont you go to E-bay under RACEPARTS and look for yourself.

 

Now that we know you have a ruined bottom end it is much easier to understand why you want a 383. But please consider atleast adding headers if you do a 383, you won't be disappointed.

As for your original question, *I think* that if you stay with stock heads and a hotcam then you won't really *need* a 52mm or larger TB. You would prolly gain a few ponies but no big deal, the most limiting factor of course would be the heads (and lack of headers).

 

no one is calling you a liar

but after looking on ebay, the cheapest i saw a crank by Scat was $200 shipped or so


we aren't arguing +-$50 here. I'm saying gasksets and machine work are already putting you in the $1000 range
something is fishy here

 

Like Can Auto Transpeed. I can link the auction where I won it to you, I have $495 in my stroker parts (the heart of the 383)... Not 1000.00 which is the crank, pistons, and balancing.

 

Should this be gutted till I can get headers possibly? It is a major holdback.

 

It was 129.99 and 160.99 to the door, NOT 199.00 plus shipping. It is a one piece seal crank and is 3.75 stroke.

 

no
your manifolds are a bigger restriction. if i could, i'd have true duals and 2 cats on there. they barely rob any power, clean the exhuast very well, make it sound cleaner (less raspy) and your eyes wont burn when you stand behind the car.

So this whole 383 build up cost you well over a grand. I'm guessing closer to two grand. I'm not too sure how much i would trust a cat(who?) crank

I think some MAC, AS&M or long tube headers would be an excellent idea. Our cars come with sufficient intake manifolds and throttle bodys. Some mild headwork (lloyd elliot is a GREAT deal for $400) and long tube headers witha catback will provide you with some excellent results. a tame car with plenty of bottom end grunt and 340rhwp isn't very far off.

Of coarse i would reccomend a set of rockers and a cold air intake as well. make it a project, not a chore. I get more **** than public crapper for puttin on my ported heads, gettin a CAI or a better stall. its all in good fun though (I hope ). My car is something i'm just taking step by step

 

This is just my project car to work on in my spare time, not a daily driver, I probably will get headers eventually, for now though, not... Got my new 2600 stall convertor for 185.00 to my door Brand New.

 

I bought it about 2 months ago with a knocking bad, took engine out and seen it was a rod and had eat the crank up, 383 history from there.

 

I highly reccomend you stop buying cheap parts. Just my opinion. This was my first build up and luckily I had this forum, my best friend, his father and a few shops to save me from doing anything too stupid. Personally, i am not rich enough to buy the cheap stuff. Every time i tried to cut a corner, it cost me double.

 

It is all you need for the street and not spinning high rpm's I bought 85% of all my stuff from individuals or ebay auctions etc... I shop around