The block was not fresh bored. A low mile short block I am rebuilding. Bores super smooth with not enough cross hatch to break the rings in.
Cley
Cley
My 360 build.
- Thread starter Clelan
- Start date
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yellow rose
Overnight Sensation
If there any crosshatch there, don't hone it.
Clean the bores until a white lint free cloth doesn't pick up any more black crap. I use ATF on the cloth and clean until the cloth is clean.
When installing the Pistons and rings, use a very small coating of assembly lube (not moly cam lube or something like that...it needs to be a forums latest assembly lube) just on the skirts ONLY. That's all. Nothing on the rings. And don't put anything on the bores after wiping the ATF off.
If you don't have an assembly lube, use engine oil. Again, very little needs to be used. It doesn't need to be dripping off the skirts. Just a little lube.
Then put it together.
By the time it's assembled and ready to fire, the rings will be 95% seated and within a minute or so of running, the rings will be seated.
That's all you need to do.
The bores were clean as a whistle when I put it together. Assembled it with STP as recommended in the krazykuda how to on this site. I was really hoping someone would say it would be ok! Dang, I dont know what to do!
Cley
Cley
I would take it apart and hone it properly. Kim
yellow rose
Overnight Sensation
I never oil rings. With anything. Let alone STP. It is essentially plastic.
Wyrmrider
Well-Known Member
depends on the rings and the finish
what rings
hone will depend on answer
what rings
hone will depend on answer
These rings that came with the KB107s
Cley
I am going to play it safe and disassemble it clean it all up again and give it a good honing. I can just barely see the old cross hatch marks. I got lots if time now that the world is shut down!
Since it's together I broke out my new deck bridge and measured the pistons at a consistent. 020 down in the hole. In an effort to maximize my available compression I guess I'll get .027 thick Cometic gaskets but I don't know how to choose the bore size of the gasket. My brain says it should be as small as possible as long as it's bigger than the 4.030 block bore size. Is that correct?
Cley
Since it's together I broke out my new deck bridge and measured the pistons at a consistent. 020 down in the hole. In an effort to maximize my available compression I guess I'll get .027 thick Cometic gaskets but I don't know how to choose the bore size of the gasket. My brain says it should be as small as possible as long as it's bigger than the 4.030 block bore size. Is that correct?
Cley
Wyrmrider
Well-Known Member
moly tops
diy
Id use a medium rigid one and see if the bores are round and straight
if the cyl hones then hit with a few strokes with a fine bottle brush
if there are areas that don't hone then we need some good pics
diy
Id use a medium rigid one and see if the bores are round and straight
if the cyl hones then hit with a few strokes with a fine bottle brush
if there are areas that don't hone then we need some good pics
Also should I get the MLS gaskets specifically for the Edelbrock heads since my Speedmaster heads are Edelbrock clones?
Cley
Wyrmrider
Well-Known Member
with mls both the block and the head need to a mls finish
essentialy running a sharp mill at slow feed or ground
use the Mr gasket or what works to set your quench down to .030-.040
essentialy running a sharp mill at slow feed or ground
use the Mr gasket or what works to set your quench down to .030-.040
Pulled back apart and started cleaning!
Cley
Cley
Cley,Did u get a rear seal? Kim
j par
Well-hung Member
I got my rear sealed 2 months ago...
My doctor does it with her finger once a year...
I would think u got it penitrated, not sealed. Unless HE sealed it with a kiss. Kim
Napa had a rear seal. It was a good Felpro one. Grabbed it on sunday.
Cley
Cley
9secRR
Well-Known Member
save some money and get Fel-Pro 1008 head gaskets.
Wyrmrider
Well-Known Member
thickness difference-which is the best for his build
Mech. comp. adjustments with head gasket thickness? - Moparchat - Home of MOPAR enthusiasts worldwide!
btw i've run .030 n a 440 with out of the block 6 pack (d-dished) pistons
block was that bad- it took a lot of decking
now if you have no quench any way build for compression but you can't use as much
mr gasket is 4.140 vs fell pro 4.180
ho much difference does ,010 thickness make AJ?
Mech. comp. adjustments with head gasket thickness? - Moparchat - Home of MOPAR enthusiasts worldwide!
btw i've run .030 n a 440 with out of the block 6 pack (d-dished) pistons
block was that bad- it took a lot of decking
now if you have no quench any way build for compression but you can't use as much
mr gasket is 4.140 vs fell pro 4.180
ho much difference does ,010 thickness make AJ?
Last edited:
9secRR
Well-Known Member
i don't think this is a max effort drag car that needs every last point of compression. i don't think a .039 gasket will be any slower then a .027 gasket. there will be zero performance difference between the two.
Also as mentioned that the block and heads need the right finish for the Cometics. Kim
Wyrmrider
Well-Known Member
so bottom line is that if your pistons are only down .020 or .030 use the Mr Gaket
otherwise it does not matter much
you do not need the expense and PITA of the cometics
would NOT run them with stock decks on either the heads or block
otherwise it does not matter much
you do not need the expense and PITA of the cometics
would NOT run them with stock decks on either the heads or block
Thanks guys! I was not aware of the special requirements for Cometic gaskets.
Cley
Cley
Next question! Pretty sure I know the answer. I picked up my Felpro 90109 intake gaskets which match the ports on my Speedmaster heads perfectly. I mount them up to my intake which has never been ground on and there is a big mismatch. I am thinking I need to match the intake to the gasket which will then match the cylinder head.
Any comments? Tips or tricks?
Cley
Any comments? Tips or tricks?
Cley
It probably won’t much matter with ur little cam. But I would do it anyways. Kim
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