2 tanks in big bore kit

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"I've got a 2 bolt head"

I was just going to ask you that after I thought about it.
Seeing that...hmm - The war continues.
Edit:
Honestly you need to at least start with a 4bolt case,especially if you want to add power. I would advise a new long block of whatever you choose: 320 or 23-31.5.
It doesn't make sense to start with a inferior design-2bolt.
So it's upgrade time,that would be your best bang for buck.
 
Last edited:
You posted as I was editing my post.
It doesn't make sense to continue with a old 2bolt engine.
This the time to upgrade to better engine regardless of 320 or 23-31.5.
The 4bolts are much stronger.
I wouldn't bother fixxing the 2bolt.
Any base 4bolt zenoah or cy is going to be better then your 2bolt. Apparently you wanted more power,so you added the big bore kit. They can be good but they also can have an issue with heads and not enough sealing force: 2bolts vs 4.
Whether it's a new engine or a long block is up to you and your wallet.
My vote is start with something other then a 2bolt.
Good Luck man.?
 
Striikar said:
You posted as I was editing my post.
It doesn't make sense to continue with a old 2bolt engine.
This the time to upgrade to better engine regardless of 320 or 23-31.5.
The 4bolts are much stronger.
I wouldn't bother fixxing the 2bolt.
Any base 4bolt zenoah or cy is going to be better then your 2bolt. Apparently you wanted more power,so you added the big bore kit. They can be good but they also can have an issue with heads and not enough sealing force: 2bolts vs 4.
Whether it's a new engine or a long block is up to you and your wallet.
My vote is start with something other then a 2bolt.
Good Luck man.?
Click to expand...
I agree ???
 
Striikar said:
You posted as I was editing my post.
It doesn't make sense to continue with a old 2bolt engine.
This the time to upgrade to better engine regardless of 320 or 23-31.5.
The 4bolts are much stronger.
I wouldn't bother fixxing the 2bolt.
Any base 4bolt zenoah or cy is going to be better then your 2bolt. Apparently you wanted more power,so you added the big bore kit. They can be good but they also can have an issue with heads and not enough sealing force: 2bolts vs 4.
Whether it's a new engine or a long block is up to you and your wallet.
My vote is start with something other then a 2bolt.
Good Luck man.?
Click to expand...
That was actually very well said. And to be open I didn't know the 2 bolts were so "bad" i mean obviously there will be a heck of a difference in compression in a 4 bolt
 
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