A460 cylinder head question

new short runner trick flow t/r for now.i may start with one carb on gas before i put the hat on with alky.

I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

look like a cows ass!

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

About 19cc less ugly than a 119 cc chambered BBC dome would look like................

with a big shot of "hose"who needs a big ugly dome?

I do not see much flow while the valves are in that BIG plunge cut.
Blake...I am not picking on the pistons design......just what a guy has to do to get big compression.

how much comp?...

138 wrote:how much comp?...

all i can get.

IDT-572 wrote:

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

About 19cc less ugly than a 119 cc chambered BBC dome would look like................

The STOCK PRODUCTION dome on an L88 Chevrolet piston is 48 cc's.
The intake valve and hindered airflow are only in that piston dome pocket from about 10 degrees BTDC to about 20 degrees ATDC; all below .250" of opening valve lift.

rmcomprandy wrote:

IDT-572 wrote:

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

About 19cc less ugly than a 119 cc chambered BBC dome would look like................

The STOCK PRODUCTION dome on an L88 Chevrolet piston is 48 cc's.
The intake valve and hindered airflow are only in that piston dome pocket from about 10 degrees BTDC to about 20 degrees ATDC; all below .250" of opening valve lift.

good thing these heads kick ass in the mid numbers!

would you mind post your flow #s and what cam are you using Cool ?

bruno wrote:would you mind post your flow #s and what cam are you using Cool ?

these#'s were on a 4.5 bore,thats big as they had.
int.
.200=176
.300=241
.400=321
.500=400
.600=452
.700=472
.800=486
.900=498
ex.
.200=153
.300=204
.400=246
.500=302
.600=334
.700=348
.800=359
.900=368
ex is w/o a pipe.

bruno wrote:would you mind post your flow #s and what cam are you using Cool ?

the cam is a B.F.Evans monday morning special. it's mild.i may try a Snake oil blend too.

IDT-572 wrote:

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

About 19cc less ugly than a 119 cc chambered BBC dome would look like................

Thats still alot of Ugly !!!!

dfree383 wrote:

IDT-572 wrote:

Lem Evans wrote:I just wonder how ugly a dome would be that would service a 100 cc chamber...and give large comp. ratio?

About 19cc less ugly than a 119 cc chambered BBC dome would look like................

Thats still alot of Ugly !!!!

A Big Block Chevy can get a bit more than 15/1 compression with a 598 however, it WILL usually make more power with only slightly over 14/1 compression ratio. Can you guess why...? LOL

why?

Less Dome

getting focused for the new build

cool40 wrote:

bruno wrote:would you mind post your flow #s and what cam are you using Cool ?

these#'s were on a 4.5 bore,thats big as they had.
int.
.200=176
.300=241
.400=321
.500=400
.600=452
.700=472
.800=486
.900=498
ex.
.200=153
.300=204
.400=246
.500=302
.600=334
.700=348
.800=359
.900=368
ex is w/o a pipe.

wow I like those flow numbers or those custom heads by evans and what size are they 340cc or 360cc?

http://www.eliminatorproducts.com/product/11.aspx

cool40 wrote:http://www.eliminatorproducts.com/product/11.aspx

That's a really good head at a good price however, BUY the titanium intake valve option.

rmcomprandy wrote:

cool40 wrote:http://www.eliminatorproducts.com/product/11.aspx

That's a really good head at a good price however, BUY the titanium intake valve option.

for sure