[80corvette1972]

I have reordered my pistons speedpro h618cp60 and scat crankshaft sca-910442 do you recomend a wibdage tray

 

[vinniekq2]

I use a 7 quart pan.and windage tray. do you need it?you answer that one

 

[80corvette1972]

Not sure i think i have new 4qt sittin on the shelf

 

[machine shop tom]

I use 3" exhaust,thats all the room I had. Coil over is a great idea! independent suspension helps handling a lot.did you get a deal on the 350? a 427 sbc is not that much more money

Congratulations. That's the dumbest thing I've read in a long time.

tom

 

[vinniekq2]

better clarify that tom,,,maybe I can break it down so you can even understand

 

[machine shop tom]

better clarify that tom,,,maybe I can break it down so you can even understand

I doubt it, but what do I know.................

A 427 SBC a little more expensive that a 350 build?

How so?

 

[ssmonty]

80corvette1972,
I don't know if you realize it, but those pistons combined with a 64cc chamber w/.040" gasket will give you over 11.5:1 compression ratio. Won't run on pump gas unless you have a very radical cam. IMO you need some flat top pistons w/12cc dish to get about 9.6:1 CR(if your using iron heads). Maybe a piston w/7cc valve reliefs if your using aluminum heads(10.2:1 CR).FWIW
ssmonty

 

[80corvette1972]

I would like to run 10:1

 

[vinniekq2]

I doubt it, but what do I know.................

A 427 SBC a little more expensive that a 350 build?

How so?

Ill go with this part of the quote
"I doubt it, but what do I know..."

 

[80corvette1972]

I have reordered my pistons speedpro h618cp60 and scat crankshaft sca-910442 do you recomend a wibdage tray

 

[machine shop tom]

Ill go with this part of the quote
"I doubt it, but what do I know..."

Oh, go ahead and try, I'll do my best to keep up, maybe I can learn something.

 

[vinniekq2]

80 Corvette,for your info;
you can buy an assembled 427 short block with all brand new parts including an shp block and balancing for under $4,000, from a very reputable crate supplier.
If you can replace the shp block with a GM 400 block for under $500. that by itself knocks off 12oo from the 4k and if you assemble the engine too thats a couple hundred, so for $2600 ish you get 70 or more cubes.

The 350 of course can be done dirt cheap if you use cheap block and used crank,used rods(not recommended)
shop around,deals are sometimes there when you need them.when you get the machine work done,especially a stroker,try to find a cnc equipped shop

 

[ssmonty]

80corvette1972,
Might consider a Speed Pro H631CP60(flat top w/5cc valve reliefs). If your pistons are at zero deck height at TDC w/.040" gasket your CR should be around 10.4:1. Could work with a big cam. You might want to look for a piston with 7cc valve reliefs instead. I couldn't find any Speed Pro brand with 7cc reliefs.
If your chambers get enough polishing to get them closer to 66cc should be ok?
You need to get a CR calculator program like this:
http://cochise.uia.net/pkelley2/dcrvb6.zip
ssmonty
PS: You might want to read the article that accompanies the calculator as well: http://cochise.uia.net/pkelley2/DynamicCR.html

 

[machine shop tom]

So, vinnie, you ever actually build a 427 SBC for real or just build one from a catalog?

Or any engine for that matter.

 

[vinniekq2]

You never looked at the car in my icon tom? Its a c-3 Corvette like the OP,it has all the recommendations I posted and more,,, what do you have? nothing in your profile indicates you drive anything,modified or stock.I do how ever see by the picture you display where you probably get your information!
sorry 80 Vette,,,

 

[80corvette1972]

Is tom having a bad day?

 

[cdminter59]

80corvette1972, These are the pistons you should have ordered. They will keep your compression to around 10.3. http://www.summitracing.com/parts/slp-8klw2256f60/overview/make/chevrolet

 

[80corvette1972]

Ok will order

 

[vinniekq2]

sent you a link to a 414 kit(do it yourself) 3100 with new shp,,,

 

[machine shop tom]

You never looked at the car in my icon tom? Its a c-3 Corvette like the OP,it has all the recommendations I posted and more,,, what do you have? nothing in your profile indicates you drive anything,modified or stock.I do how ever see by the picture you display where you probably get your information!
sorry 80 Vette,,,

For starters, 31 years running an automotive machine shop, building engines for over 35 years, ASE-certified Master Engine Machinist, junior college automotive engine repair instructor...........

And if having a car is a qualification, here is my card: