360 vs 318 Conundrum
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360 vs 318 Conundrum
I need to replace my LA 360, but I’ve only been able to find LA 318’s.
Does anyone know whether it will be a straight swap in terms of engine mounts, exhaust manifolds (exhaust run)?
Any other issues much appreciated.
Cheers
Mike
Does anyone know whether it will be a straight swap in terms of engine mounts, exhaust manifolds (exhaust run)?
Any other issues much appreciated.
Cheers
Mike
Re: 360 vs 318 Conundrum
I believe the 273/318 mount ears are different from the340/360 ones. As long as you get the ears with the block you should be good.
I am coming to believe a 56mph speed record is harder to achieve than a 400mph one!
Re: 360 vs 318 Conundrum
360's are I think Externally balanced, 318's internally so Flywheel / Flex Plate will be different and "May" impact on the Convertor balance too....
Pete Wiseman; Cambridge.
Mopar by the grace of God
Mopar by the grace of God
Re: 360 vs 318 Conundrum
Drivers side engine mount is slightly different, simple enough fix. 360 is externally balanced so you either need to remove the weights from the 360 convertor or use one from a 318. Other than those considerations it's a straight swap. Whats up with your 360?
“This ain’t no party, this ain’t no disco, this ain’t no foolin’ around”
Re: 360 vs 318 Conundrum
Thank you guys, as what’s wrong with my 360-incorrect pistons generally excess wear and heads beyond repair.
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Re: 360 vs 318 Conundrum
Incorrect pistons?
Any pics of the heads?
Any pics of the heads?
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Save the tree's.........Burn Rubber!!
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Re: 360 vs 318 Conundrum
I’d be interested in a 360
Pistons can be changed to up the compression. Heads should be fine unless they’re cracked. Came from the factory with hardened valve seats so shouldn’t have excessive wear.
Pistons can be changed to up the compression. Heads should be fine unless they’re cracked. Came from the factory with hardened valve seats so shouldn’t have excessive wear.
Re: 360 vs 318 Conundrum
yeah stick with your 360 until you have it confirmed that its scrap.....
nothing to say a motor you buy second hand will be better than you have, unless its been rebuilt by a trustworthy source. unless its running and driving or freshly machined, measurable, and in bits you have nothing to go on but the sellers often inflated view of its condition.
£400+ for a 318 sitting on the wet concrete in an ebay sellers yard is a risk.... 100% good or 100% scrap and not much of it fits a 360
Dave
nothing to say a motor you buy second hand will be better than you have, unless its been rebuilt by a trustworthy source. unless its running and driving or freshly machined, measurable, and in bits you have nothing to go on but the sellers often inflated view of its condition.
£400+ for a 318 sitting on the wet concrete in an ebay sellers yard is a risk.... 100% good or 100% scrap and not much of it fits a 360
Dave
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying
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Re: 360 vs 318 Conundrum
‘Especially as my mate stripped a ‘good running’ 318 this week to investigate a seal leak and found that some arse had put a too long bolt right through the timing cover and into the engine bore! Scrap metal now.. never seen anything like it.
Re: 360 vs 318 Conundrum
A damaged 318 block still makes for a good plant pot in the garden or table base a la Top Gear, so it will still have value on E-bay even with a hole in it.
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Re: 360 vs 318 Conundrum
I see. I'll take note of this for future reference."A damaged 318 block still makes for a good plant pot in the garden or table base a la Top Gear, so it will still have value on E-bay even with a hole in it."
Re: 360 vs 318 Conundrum
just noted you are in the US
that opens up things way more....
heads https://enginequest.com/wp-content/uplo ... atalog.pdf
EQ-CH318B 318 5.2 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER
EQ-CH318BA 318 5.2 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318A 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER
EQ-CH318AA 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318B 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER
EQ-CH318BA 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172
you can fit
EQ-CH318AA 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318B 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
to you 360 small block LA provided you bend the credit card at rockauto for a magnum rocker arm and rockers set up
or get the heads modified to take you LA rockers
they came with the stud pattern for both types of inlet manifold
you will need to do some small work to clearance for the push rods as the heads were designed for use with a tall roller lifter not a short flat tappet lifter. the change in height of the lifter seat puts the pushrods at an angle that may cause them to rub
sealed power do a higher compression height hyperutectic piston...they can be had from US and mexican suppliers mexicans often cheaper than summit racing.
can't find a mexican supplier at the mo...but the pistons are made in mexico or india
ring sets for LA cheap, ring sets for magnum expensive in comparison, so look for deal on both pistons and rings, the magnum uses a thinner ring set. top 2 fit both but the bottom 3 part expander does not
https://www.ebay.co.uk/i/153113695286?r ... ultOrganic
here is a latin american supplier i have used based in the US. they speak Spanish which is no use to me.. but we managed to do a deal
i can say rice and milk/rice puddling , burrito and where is the church and thats it
they do Mopar stuff and its usually cheaper than elsewhere
https://www.ebay.com/itm/Chrysler-Dodge ... SwEK9UEEX6
I used 318 magnum pistons from this supplier in my Australian I 6
the Mahle rings come with instructions that are way more useful than those included with a sealed power set i.e the rings in the box actually feature in the instructions why sealed power start talking about dykes rings first i have no idea.... pictures of ring cross section showing reliefs and tapers with no indication of whether that is inside or outside is no bloody use...Mahle are better in this respect they don't do a photocopy 1 sheet of paper covering every product they ever made, instruction
Dave
that opens up things way more....
heads https://enginequest.com/wp-content/uplo ... atalog.pdf
EQ-CH318B 318 5.2 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER
EQ-CH318BA 318 5.2 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318A 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER
EQ-CH318AA 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318B 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
62CC COMBUSTION CHAMBER
EQ-CH318BA 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172
you can fit
EQ-CH318AA 360 5.9 1990 - 2003 REPLACES CASTING NUMBERS: 53005714, 53006671, 53020466, 53020468
172CC INTAKE RUNNER / 62CC COMBUSTION CHAMBER – ASSEMBLED
EQ-CH318B 360 5.9 1967 - 1989 WITH LA STYLE INTAKE BOLT PATTERN REPLACES CASTING NUMBERS:
53005714, 53006671, 53020466, 53020468, 172CC INTAKE RUNNER
to you 360 small block LA provided you bend the credit card at rockauto for a magnum rocker arm and rockers set up
or get the heads modified to take you LA rockers
they came with the stud pattern for both types of inlet manifold
you will need to do some small work to clearance for the push rods as the heads were designed for use with a tall roller lifter not a short flat tappet lifter. the change in height of the lifter seat puts the pushrods at an angle that may cause them to rub
sealed power do a higher compression height hyperutectic piston...they can be had from US and mexican suppliers mexicans often cheaper than summit racing.
can't find a mexican supplier at the mo...but the pistons are made in mexico or india
ring sets for LA cheap, ring sets for magnum expensive in comparison, so look for deal on both pistons and rings, the magnum uses a thinner ring set. top 2 fit both but the bottom 3 part expander does not
https://www.ebay.co.uk/i/153113695286?r ... ultOrganic
here is a latin american supplier i have used based in the US. they speak Spanish which is no use to me.. but we managed to do a deal
i can say rice and milk/rice puddling , burrito and where is the church and thats it
they do Mopar stuff and its usually cheaper than elsewhere
https://www.ebay.com/itm/Chrysler-Dodge ... SwEK9UEEX6
I used 318 magnum pistons from this supplier in my Australian I 6
the Mahle rings come with instructions that are way more useful than those included with a sealed power set i.e the rings in the box actually feature in the instructions why sealed power start talking about dykes rings first i have no idea.... pictures of ring cross section showing reliefs and tapers with no indication of whether that is inside or outside is no bloody use...Mahle are better in this respect they don't do a photocopy 1 sheet of paper covering every product they ever made, instruction
Dave
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying
Re: 360 vs 318 Conundrum
PS EngineQuest specialise in dismantling cars for their drive train and sending working units to Africa Asia and south america
i.e places with the attitiude that 100K miles old is just about broken in
they can probably find you an engine if the bottom end of your current one is a No go...
i.e places with the attitiude that 100K miles old is just about broken in
they can probably find you an engine if the bottom end of your current one is a No go...
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying