dart 360
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Those castings with ALOT of work can make over 1000HP. But it takes a ton of work, raising roof of intake port aggressive vjob ect....
Mike Theroux
www.mikesportingservice.com
Mike Theroux
www.mikesportingservice.com
Joined
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75 Posts
I have basically the same question as R Parsons, except I have a set of 10 year old Dart 320's, the fully CNC ported ones. They are suppose to be exactly the same as the 360's on the exhaust side and I've been told they can be opened up about the same as the 360's on the intake side. True?
Are my 320's capable of making close to a 1000hp with some really good port work? They also still have 119-120cc chambers and I have a 48.4 cc dome piston, should I angle mill them to get the chamber smaller and go with less dome for better efficiency? Going to go 4.6 bore next time so I'll need new pistons anyway. I already have Jessel shaft rockers on these heads, so buying another set of heads is not in the current budget.
Currently running n/a 9.0'[email protected] - 3200lbs, 5.80'[email protected] 1/8 mile. What's that, maybe 850hp? I want to run solidly in the 8's 8.70's-8.80's or a little faster if possible. I just don't know if these heads are capable. Don't want to waste to much money on them.
Current setup, 540 (4.50x4.25) 14.5 compression with 1/16 rings and not gas ported, Super Victor port match only, cam is .748-.748 280-284 108LS. Shift at 7400 and go across line about 7600 now. Titanium Intake valves be worth it? I'm sure I need more camshaft. Going to a 4.6 bore will have to help some. Lateral gas ports and .043 rings should be worth something also. Am I heading in the right direction?
Are my 320's capable of making close to a 1000hp with some really good port work? They also still have 119-120cc chambers and I have a 48.4 cc dome piston, should I angle mill them to get the chamber smaller and go with less dome for better efficiency? Going to go 4.6 bore next time so I'll need new pistons anyway. I already have Jessel shaft rockers on these heads, so buying another set of heads is not in the current budget.
Currently running n/a 9.0'[email protected] - 3200lbs, 5.80'[email protected] 1/8 mile. What's that, maybe 850hp? I want to run solidly in the 8's 8.70's-8.80's or a little faster if possible. I just don't know if these heads are capable. Don't want to waste to much money on them.
Current setup, 540 (4.50x4.25) 14.5 compression with 1/16 rings and not gas ported, Super Victor port match only, cam is .748-.748 280-284 108LS. Shift at 7400 and go across line about 7600 now. Titanium Intake valves be worth it? I'm sure I need more camshaft. Going to a 4.6 bore will have to help some. Lateral gas ports and .043 rings should be worth something also. Am I heading in the right direction?
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1,263 Posts
The Dart 360 heads are capable of making over 1000 hp if properly worked and the rest of the engine along with it. A 522 would need to turn some rpm, 7000 is where it will start to run good.
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1,263 Posts
The dart 325 heads can be made into 360 plus heads, it just takes more grinding.
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508 Posts
G&H...
Yes your heads (like Mr Abbott said) can be made into "360s" or be made into what 360s can be worked to
If you target is 1000HP, it would be possible with them. Just takes ALOT!!
Mike Theroux
www.mikesportingservice.com
Yes your heads (like Mr Abbott said) can be made into "360s" or be made into what 360s can be worked to
If you target is 1000HP, it would be possible with them. Just takes ALOT!!
Mike Theroux
www.mikesportingservice.com
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17,686 Posts
I have 360's and yes they are bad ass and no I don't know how to post Pics LOL
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435 Posts
My 12 yr old 320's made 960 hp on a 477" with a single 4, hope Chris has some good answers here. We now spray the shit out of these and yes big RPM going through lights at like 9400 shift at 8900 so it can be hard on valvetrains but no problems so far.
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