duster731
young gun
Closed chamber 64 cc better flow and better for your compression ratio than the 360 heads.
Plus the swirl port design and the 188-160 valves
Plus the swirl port design and the 188-160 valves
"302" heads
- Thread starter furydan
- Start date
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voodoo1
Well-Known Member
I hadn't thought of putting them on a 360 tho. I figured they'd be too small.
65Val
Average Length Member
Yes, I suppose you can use them on 360's, but ports and valves are a wee small for any performance out of 360's. They were used on 318's of the day because of their better swirl port chamber design and small ports and valves to maintain mixture velocity. They also have the hard seats required for no-lead fuel...the older 273/318 heads did not have this. They are a great upgrade from the earlier heads.
1wild&crazyguy
Banned
318 heads no matter what casting 'as cast' do not flow better than a small valve 360 head.
Mill a 360 down to 64cc and drop it on, you'll make more power with it as cast
If you could port the '302' 318 head to flow the same or better as a 360 head...then u'd have something better by virtue of a closed chamber and the fact that your moving the same air through a smaller hole=broadens torque, especially low end...but then again you'd want to maximize the compression ratio/dynamic cranking psi 'use the right piston as well' to realize the full potential/quench
but then later on... u'll realize the 360 has more in the flow department, but that will only com into play if you need over 240-250cfm, thats when the bigger port takes over.
fwiw
Mill a 360 down to 64cc and drop it on, you'll make more power with it as cast
If you could port the '302' 318 head to flow the same or better as a 360 head...then u'd have something better by virtue of a closed chamber and the fact that your moving the same air through a smaller hole=broadens torque, especially low end...but then again you'd want to maximize the compression ratio/dynamic cranking psi 'use the right piston as well' to realize the full potential/quench
but then later on... u'll realize the 360 has more in the flow department, but that will only com into play if you need over 240-250cfm, thats when the bigger port takes over.
fwiw
voodoo1
Well-Known Member
Cool. I'm learning something new everyday here. Thanks
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