A460 cylinder head question

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Re: A460 cylinder head question

Post  cool40 on August 29th 2011, 10:01 pm

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.
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Re: A460 cylinder head question

Post  Lem Evans on August 29th 2011, 10:27 pm

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

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Re: A460 cylinder head question

Post  cool40 on August 29th 2011, 10:30 pm

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!
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Re: A460 cylinder head question

Post  Lem Evans on August 29th 2011, 10:31 pm

Smile

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Re: A460 cylinder head question

Post  IDT-572 on August 29th 2011, 10:34 pm

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................ Razz
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Re: A460 cylinder head question

Post  cool40 on August 29th 2011, 10:35 pm

with a big shot of "hose"who needs a big ugly dome? afro
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Re: A460 cylinder head question

Post  Lem Evans on August 29th 2011, 10:42 pm

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.

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Re: A460 cylinder head question

Post  138 on August 29th 2011, 10:53 pm

how much comp?...

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Re: A460 cylinder head question

Post  cool40 on August 29th 2011, 10:55 pm

138 wrote:how much comp?...
all i can get. Very Happy
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Re: A460 cylinder head question

Post  rmcomprandy on August 30th 2011, 9:58 am

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................ Razz

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.

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Re: A460 cylinder head question

Post  cool40 on August 30th 2011, 9:48 pm

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................ Razz

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! lol!
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Re: A460 cylinder head question

Post  bruno on August 30th 2011, 10:12 pm

would you mind post your flow #s and what cam are you using Cool ?
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Re: A460 cylinder head question

Post  cool40 on August 30th 2011, 10:50 pm

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. Rolling Eyes
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.
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Re: A460 cylinder head question

Post  cool40 on August 30th 2011, 11:01 pm

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. Wink it's mild.i may try a Snake oil blend too.
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Re: A460 cylinder head question

Post  dfree383 on August 31st 2011, 11:48 am

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................ Razz

Thats still alot of Ugly !!!! cheers
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Re: A460 cylinder head question

Post  rmcomprandy on August 31st 2011, 10:57 pm

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................ Razz

Thats still alot of Ugly !!!! cheers

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

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Re: A460 cylinder head question

Post  138 on August 31st 2011, 11:07 pm

why?

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Re: A460 cylinder head question

Post  lghting94 on September 1st 2011, 8:22 am

Less Dome
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Re: A460 cylinder head question

Post  bruno on August 1st 2012, 11:46 pm

getting focused for the new build Cool
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Re: A460 cylinder head question

Post  CHARLIEB on August 6th 2012, 8:44 pm

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. Rolling Eyes
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?
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Re: A460 cylinder head question

Post  cool40 on August 6th 2012, 9:31 pm

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Re: A460 cylinder head question

Post  rmcomprandy on August 6th 2012, 9:39 pm


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

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Re: A460 cylinder head question

Post  cool40 on August 6th 2012, 10:47 pm

rmcomprandy wrote:

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