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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


SBC 355

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SBC 355 Empty SBC 355

Post by TWBouska AKA Wooderson Tue Dec 22, 2009 4:01 pm

what exactly is a 355? is it just a sligthly bored 350? just curious what the bore/stroke is
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Post by 1973chevelle Tue Dec 22, 2009 4:31 pm

i think thats all it is is a bored 350 but idk the bore size
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Post by Limey SE Tue Dec 22, 2009 5:16 pm

a 355 is a stock 350 taken .030" over the standard bore of a normal 350 mine is a 355


Last edited by Limey on Tue Dec 22, 2009 5:18 pm; edited 1 time in total

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Post by TWBouska AKA Wooderson Tue Dec 22, 2009 5:27 pm

ohh ok..how much does that extra bore help? i dont know a lot about boring and such, i havent gotten that far in my learning to know how much it helps...i mean an extra 5 inches is an extra 5 inches so i know its good for something.
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Post by Limey SE Tue Dec 22, 2009 5:40 pm

its not an extra 5" per say just increase the standard bore by .030" that's only 30 thousandth of an inch suppose to increase horsepower

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Post by The Dude Tue Dec 22, 2009 6:22 pm

Really not gonna make a noticeable difference. Mostly it comes from a necessity rather than a power increase method. When you tear down an old motor & notice a ridge at the top or scoring in the cylinder, it becomes necessary to bore out the cylinders. Pretty much as simple as that. Here's a formula to follow:

Displacement = (bore) x (bore) x (stroke) x (# of cylinders) x (.7854)
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Post by coreys73chevelle Wed Dec 23, 2009 12:01 am

I have a 355ci roller. you get a 350ci and bore it .030 over no difference of stroke or internals. it isnt a 383 stroker until you get a 400ci crank and flywheel or flexplate and usually you change the rods to 6" rods but you dont always have to
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Post by Limey SE Wed Dec 23, 2009 12:14 am

coreys73chevelle wrote: .030 over no difference of stroke or internals.
Are you forgeting the diff size pistons you HAVE to put in ??

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Post by coreys73chevelle Wed Dec 23, 2009 12:17 am

haha yea. ull need .030 overbore pistons they will be under 350ci and say .030overbore
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Post by Limey SE Wed Dec 23, 2009 12:28 am

mine just said..... + .030"

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Post by coreys73chevelle Wed Dec 23, 2009 12:30 am

i mean online and in magazines. my pistons also say +.030"
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Post by Limey SE Wed Dec 23, 2009 12:37 am

Very Happy o yea sorry boss
hey you get that yet ??

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Post by The Dude Wed Dec 23, 2009 12:03 pm

coreys73chevelle wrote:I have a 355ci roller. you get a 350ci and bore it .030 over no difference of stroke or internals. it isnt a 383 stroker until you get a 400ci crank and flywheel or flexplate and usually you change the rods to 6" rods but you dont always have to

Stick with 5.7" rods on a 383. I know 6" rods are an option, but then you get into more block clearances that need to be made, small base circle cams, & also the pin will be higher into the piston. I believe it actually cuts into the bottom ring land. Someone want to double check me on this one?
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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 12:34 am

thats what id like to build eventually...im gonna go with my 350 in the mean time and add cam heads intake and headers, do my interior, suspesnsion, rebuild the rear end, add a posi, new trans, and then id like to build a 383 with a weiand blower...should be pretty mean.
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Post by Limey SE Thu Dec 24, 2009 1:35 am

edelbrock 2101 4 barrel manifold here for sale also if you want that as well travis

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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 2:25 am

yeah man i saw that, i think i might have to get that from you as well if you still have it around in a month or two. thats the manifold i want
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Post by Limey SE Thu Dec 24, 2009 2:52 am

well pm me an offer and i can send both, the wheel and this at once

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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 3:02 am

i wish dude...i just had to drop almost my whole paycheck for this week on new suspension bushings, control arms, shocks, etc...but ill be able to take it off of your hands here in a couple weeks.
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Post by Limey SE Thu Dec 24, 2009 3:24 am

ok bro hold it till after the first for ya

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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 3:26 am

thanks man i appreciate it...any chance you know how much itll be shipped?
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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 3:29 am

alright...so the things good? its not corroded inside or anything?
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Post by Limey SE Thu Dec 24, 2009 3:31 am

no sir you wont be disappointed

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Post by TWBouska AKA Wooderson Thu Dec 24, 2009 12:57 pm

sounds good to me man...if you still got it around when i get the money ill hit you up for that as well.
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