And so it begins! 318 Poly to 360 LA Swap
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Re: And so it begins! 318 Poly to 360 LA Swap
Hi, take a look at the Chrysler Power webstore https://cpwebstore.com/Poly for some very nice and pricey parts for the poly .
Obviously, one for the post corona period, if anybody's got any cash left.
Chris
Obviously, one for the post corona period, if anybody's got any cash left.
Chris
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Re: And so it begins! 318 Poly to 360 LA Swap
That will have to be mega post corona the rate is stinkin and will be for yrs wont be much coming out of the usa now
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WATTS RACING TRANSMISSIONS, CLOBBER THE COMPETITION ITS CLOBBERIN TIME
OFTEN OUTNUMBERED NEVER OUTGUNNED,
HEY WHATS THE TOP END ON THAT SUPERSPORTS. UNLIMITED,
I HAVE A NVQW
LIFE GOES PRETTY FAST, IF YOU DONT LOOK ROUND A WHILE YOU MAY JUST MISS IT,
THE PASS IS THE JUICE,
LOVED BY FEW,
HATED BY MANY
RESPECTED BY ALL
Re: And so it begins! 318 Poly to 360 LA Swap
Very true, luckily I got some parts in January and sent via Ron FentonCannonball wrote: ↑Mon Mar 23, 20 11:52 am That will have to be mega post corona the rate is stinkin and will be for yrs wont be much coming out of the usa now
Re: And so it begins! 318 Poly to 360 LA Swap
How come it's considered the Poly is as heavy as a big block?
I remember weighing parts a few years ago and that wasn't how I found it to be. The heads are certainly heavier than LA heads and the block's a little heavier, but not enormously so.
Same crank, same rods, same timing cover, same water pump, same lots of stuff.
I think the Poly is discounted for a lot of assumed reasons which aren't really viable. A shame there's no current decent manifold available for it, that's true. A nice air-gap style manifold would be very welcome, otherwise I think the old Edelbrock is probably the best.
I remember weighing parts a few years ago and that wasn't how I found it to be. The heads are certainly heavier than LA heads and the block's a little heavier, but not enormously so.
Same crank, same rods, same timing cover, same water pump, same lots of stuff.
I think the Poly is discounted for a lot of assumed reasons which aren't really viable. A shame there's no current decent manifold available for it, that's true. A nice air-gap style manifold would be very welcome, otherwise I think the old Edelbrock is probably the best.
Re: And so it begins! 318 Poly to 360 LA Swap
Let's put this to bed right now...Originally posted by Blue
The thing that rules the poly out for me apart from the rarity and cost of parts is the weight. Big block weight with small block capacity doesn't sound like an ideal place to start from. Pound for pound (£ as well as lb) a stroked 360 is a great option these days.
LA iron heads are 25kg complete with valves and rockers.
Poly heads are 28kg complete with valves and rockers.
That's 6kg difference in the heads - unless you buy alloy heads.
LA block is 77kg bare with caps.
Poly block is 83kg bare with caps.
These are real figures. 6kg for the heads, 6kg for the block, everything else is basically the same unless you're counting the original cast iron inlet manifold. there might be a couple more kgs in that.
I think you'll find that the big block crank on its own will make almost that difference, then you have a bigger and heavier block. Heads are probably the same.
Of course you can also stroke the Poly, some in America are running 408 cubic inches but you need a block with good cores to get it that big. You won't get that with a 318LA.
Re: And so it begins! 318 Poly to 360 LA Swap
[quote= Of course you can also stroke the Poly, some in America are running 408 cubic inches but you need a block with good cores to get it that big. You won't get that with a 318LA. [/quote]
a 318la will be at 396 cu in with a normal 60 thou' overbore and the same stroker kit you mention (4" stroke). finding a poly core is hard enough, let alone enough to check them all and find one that's thick enough for a 110 thou' overbore. just saying, and by the way i like a poly so no agenda
neil.
a 318la will be at 396 cu in with a normal 60 thou' overbore and the same stroker kit you mention (4" stroke). finding a poly core is hard enough, let alone enough to check them all and find one that's thick enough for a 110 thou' overbore. just saying, and by the way i like a poly so no agenda
neil.
Re: And so it begins! 318 Poly to 360 LA Swap
The poly in full stock configuration is usually listed at 600lb or so, I read someone weighed the iron intake at 56lbs. Maybe this information is incorrect Sure if you throw enough time and money at a poly you might get yourself a stout performer but with little aftermarket support it's hard work and unless you're trying to prove a point I really don't know why you'd go there is my take on it.
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Re: And so it begins! 318 Poly to 360 LA Swap
Back to the Plymouth! Lockdown project has been the resto of my Portafold, so now that's done, back to the LA!
Sump on, 727 refreshed and aiming to drop them in as one piece by the end of the week (as it's nice and sunny!)
Sump on, 727 refreshed and aiming to drop them in as one piece by the end of the week (as it's nice and sunny!)
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Re: And so it begins! 318 Poly to 360 LA Swap
Sorting out a couple of holes in the chassis leg way laid plans for the engine today
I reckon this wagon had lots of fun at the beach in its time considering how much sand came out of the chassis leg! It just seemed to keep coming!
Back to the engine tomorrow I hope
I reckon this wagon had lots of fun at the beach in its time considering how much sand came out of the chassis leg! It just seemed to keep coming!
Back to the engine tomorrow I hope
Re: And so it begins! 318 Poly to 360 LA Swap
Old car ownership is mostly about being tenacious.... and not quitting!!!!
Pete Wiseman; Cambridge.
Mopar by the grace of God
Mopar by the grace of God
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Re: And so it begins! 318 Poly to 360 LA Swap
Now I'm getting excited!
Re: And so it begins! 318 Poly to 360 LA Swap
Progress indeed!
Pete Wiseman; Cambridge.
Mopar by the grace of God
Mopar by the grace of God
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Re: And so it begins! 318 Poly to 360 LA Swap
And thanks to Duncan Watts who got some new trans seals in the post within an hour of talking to him!
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Re: And so it begins! 318 Poly to 360 LA Swap
And in! First time I've tried box and engine in one - surprisingly straight forward
Cripes it was hot.....
Cripes it was hot.....
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Re: And so it begins! 318 Poly to 360 LA Swap
Bet you had a well deserved beer after doing that in this heat
73 Charger 318
MMA-130
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