Identify heads

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Aug 30, 2018 | 04:21 PM

Sebambam

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Identify heads

Can you guys help me identify this heads...
no cast#! Ground off!!
Have a halfed homeport job

Intake are 2.05 valves
exhaust 1.6

Check the pics please

Are they any good ?

Aug 30, 2018 | 07:02 PM

G Atsma

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From: Central Cal.

Chambers look pretty tight, modified 5.3 truck heads?

Aug 30, 2018 | 07:06 PM

Sebambam

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Quote:

Originally Posted by G Atsma

Chambers look pretty tight, modified 5.3 truck heads?

Could be

Do truck heads have this notch on the surface? Or are this ls1 notch heads?

is there a way to find out with the orher #

Aug 30, 2018 | 08:17 PM

wannafbody

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Those have the triangle next to the spark plug hole. They might be 799/243 castings

Aug 30, 2018 | 08:44 PM

slogo

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Quote:

Originally Posted by wannafbody

Those have the triangle next to the spark plug hole. They might be 799/243 castings

The triangle you are referring to should be under the plug hole not the casting where the head bolt goes through,
and the exhaust port is d shaped on the 243 799. These are not 243 799.

Aug 30, 2018 | 08:49 PM

Che70velle

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I’m sure these are cathedral port, yes? Chamber isn’t closed. I’d say 853’s.

Aug 30, 2018 | 09:16 PM

Sebambam

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I think this are 853 ls1 notch heads..
but i also just noticed the TX. Stamping... Could tgat be a " porter"?
since they accept the 2.05/1.6 valves?
And tge look milled? Any way to meassure that?

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Aug 30, 2018 | 10:50 PM

Sebambam

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Quote:

Originally Posted by G Atsma

To see if they're milled, measure the exact height of the head from bottom to valve cover mounting surface. Then compare to a known stock head.

lol.yea but whats the oem height

Aug 30, 2018 | 10:53 PM

#10

G Atsma

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From: Central Cal.

That's why I said compare to a STOCK, as in unmilled, head. All OEM LS heads except LS7 are the same height.

Aug 31, 2018 | 10:18 AM

#11

Sebambam

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Quote:

Originally Posted by G Atsma

That's why I said compare to a STOCK, as in unmilled, head. All OEM LS heads except LS7 are the same height.

Since i dont have a oem head laying arroun i have to have a height # to compare

Sep 4, 2018 | 02:33 PM

#12

Joe69z28

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From: Dirty South

Quote:

Originally Posted by Sebambam

I think this are 853 ls1 notch heads..
but i also just noticed the TX. Stamping... Could tgat be a " porter"?
since they accept the 2.05/1.6 valves?
And tge look milled? Any way to meassure that?

Quote:

Originally Posted by Sebambam

Since i dont have a oem head laying arroun i have to have a height # to compare

Those are NOT 5.3 heads, a 706 chamber will have a distinct heart shape and be slight flat at chamber bottom and a ledge above exhaust valve .Measure the chamber width 706 will be 3.75 and 853 will be 3.82 Better way would be to measure CC volume ,than height .Judging from pics you do have 853s

Sep 5, 2018 | 07:32 PM

#13

cookseyb

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From: Central Texas

Quote:

Originally Posted by Sebambam

Can you guys help me identify this heads...
no cast#! Ground off!!
Have a halfed homeport job

Intake are 2.05 valves
exhaust 1.6

Check the pics please

Are they any good ?

Is that a crack in the bolt seat?

Sep 6, 2018 | 10:00 AM

#14

Full-Force

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From: Upstate of SC

These are not 243/799 heads so they are not gonan be any better than any other stock head. I wouldn't call those heads ported at all. No work in the bowl/valve guide area at all which is where the power enhancement is going to come from. That and removing the rocker boss.

I would pass on those and get a set of stock 243/799 heads if you are looking for something cheap.

Sep 6, 2018 | 03:34 PM

#15

00pooterSS

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From: Dallas

Quote:

Originally Posted by Full-Force

And less of a selection of head gaskets that will work with the gay notch in the head.

I've been bitten by that notch with old perimeter bolt 97 LS1 heads.