King Nothing

iTrader: (9)

What companies would anyone suggest to talk to for a custom stroke size? looking at a 3.937 maybe

King Nothing

iTrader: (9)

ok i called Callies and they said no problem btw thank you TSP for tryin to discourage me from my inquiry, most likely i'll pass on buyin parts from you

96 Comp T/A

iTrader: (8)

So I'll bite... Why would you want to run through the additional cost/grief of running a custom combo, that is relatively insignificant from a displacement perspective? Do you have a deck that was cut .030 too much, or are you trying to get to a specific displacement for a given class of competition? I don't have a dog in this fight either way, but I would say that any one advising you to do this isn't really giving you sound advice. If you have an oddball crank, you are probably going to always require either oddball pistons and or rods for a rebuild or replacement. If you are dead set on doing this, I would suggest looking for used 4" crank, maybe with a wiped rod journal for cheap and have a reputable crank grinder put the stroke you want on it, with 2" rod journals.

King Nothing

iTrader: (9)

Going for a specific CI and I'm making the car into what I personally want since it is a roller and will need an engine, trans and rear end. Why oddball pistons? I'm changing the stroke not the bore and what's the problem with custom rods if needed? I want a forged crank not an iron crank so no used parts in my engine

96 Comp T/A

iTrader: (8)

Because if you alter the stroke, and do not increase/decrease the rod length and or compression height of the pistons will be either up or down in the hole. In your specific example, assuming a 0 deck height with a 4" crank, the same pistons and rods on your 3.93 crank will end up .031 down in the hole. Most times folks would have custom pistons made with a different compression height made (move the wrist pin up or down relative to the top of the piston), but there are inherent issues with doing that. So now you've spent all this money on a custom crank and now custom pistons or rods. Have you priced a custom set of pistons or rods lately? What happens in two years when you go to freshen it up, or worse you burn up a piston, every time you go to do something you have to order custom oddball stuff that has long lead times to manufacture. This hobby can be frustrating enough without making your own boulder to push up hill.

King Nothing

iTrader: (9)

I'm sorry I was thinking you were meaning bore not the dish itself, yes I already know a custom piston will need to be bought also and I was talking with Don at Callie's about the crankshaft and custom rods and we decided when it gets closer we'll decided who to go through for pistons then that'll be the next door to open. To answer your question, yes I've talked about pricing on everything except pistons and I'm not shocked at all so far

96 Comp T/A

iTrader: (8)

Well my personal opinion is that you can make all the horsepower you could ever want with off the shelf parts, thus leaving you more money to spend on other parts of the project. Hell have you seen what guys do with 100k mile truck engines these days? Anyhow, your car, your dream, good luck with it.

King Nothing

iTrader: (9)

Trust me I know I've thought about that lol but I want to have a very unique car. i don't want to have the same engine or trans as other ls owners, thats why i'll be specing out my gear ratios also. thank you for your opinion though i do appreciate it!

bww3588

iTrader: (49)

You're going after a true 396 aren't you?

If that's the case, why don't you use a 4.020 bore and a 3.900 crank? They are all shelf parts and won't cost you as much as custom stuff.

FLYZNTN

I understand that desire to have something a little different. I've been kicking that around myself.

I'd like to build a 400.

3.825" Stroke

The bore would be 4.080.

The crank is an off the shelf piece but the pistons... not so much. I was kicking around asking Texas Speed their thoughts......

This motor will have a 2.9L Whipple on top.

My thinking was that I could get a little more piston to handle the boost, as well as, some uniqueness combined with a motor size that brings back a few memories.

Sorry about the thread jack.....

Build whatever makes you happy.

King Nothing

iTrader: (9)

I was wondering when someone would do the math because if I use the custom crank size the bore can stay 4.000 so less machine work
No need for the apology and I encourage anyone to go with an idea for their car if they have something different in mind. I was hopin to go through TSP for a lot of parts but all it took was one person on the phone questioning why and sayin it'll cost a lot and take awhile, good way to lose business but something tells me they'll be fine

litle88

iTrader: (20)

Ooooo look at the big brains on campus!

Lol

JUSTINSWS6

callies is some quality stuff . should be a cool build, kudos for being different!

King Nothing

iTrader: (9)

thanks bud! once i start gettin parts i'll post build pics and info

JUSTINSWS6

Cool dude, hope everything goes smooth!

King Nothing

iTrader: (9)

thanks bud!!

btw for anyone who wants it here is the formula's for cylinder and engine displacement
cylinder: boreXboreXstrokeX.7854
engine: boreXboreXstrokeX.7854Xnumber of cylinders

bww3588

iTrader: (49)

Nope, still as dumb as ever. I just happened to kick that same idea around before I started my 370 build.

litle88

iTrader: (20)

Whatever!!!!

Is that **** gonna be ready this spring biach?

litle88

iTrader: (20)

Whatever!!!!

Is that **** gonna be ready this spring biach?

93Z2871805

iTrader: (5)

I can understand wanting a true 396 as a tribute to the past, however I can relate to what 96 Comp T/A said in relation to odd-ball parts. FWIW another consideration would be doing a 402, as "396's" after 1969 were cleaned up .029 to a 4.125 bore and had an actual CID of 402 despite still being badged as a 396. Then you could pay true homage by badging your car as a 396 with an actual displacement of 402.