"stealth" or "super stealth" heads which to get??
#1133231
12/13/11 12:43 PM
12/13/11 12:43 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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What'd be the deciding info to decide which way to go w them and do they require offset rockers? Only $125 diff (ea/bare). I have 3/8 2.14/1.81 new valves & emailed them to see if the guides can handle that increase but no ans. I will call them when they open up out there. Thank you for your time.
live every 24 hour block of time like it's your last day on earth
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Re: "stealth" or "super stealth" heads which to get??
[Re: RapidRobert]
#1133235
12/13/11 05:33 PM
12/13/11 05:33 PM
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Joined: Jan 2003
Posts: 75,098 A Banana Republic near you.
JohnRR
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If I have read what little I have on the super stealths correctly they are not finish ported ??? But you can't buy the stealths bare , unless that has changed.
Double R I went right to the source & called them & they told me both are avail bare with the "supers" being rough bare as in needing valve job/guide clearance set and alot of die grinder work and the supers (only) require offset rockers and the supers are only avail bare. $374.95/$497.50 for regular stealths. $499.95 for bare "super". Each.
They changed back to offering the stealths bare then because they had stopped doing that .
Now a question for you, what heads are your valves for ?
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Re: "stealth" or "super stealth" heads which to get??
[Re: JohnRR]
#1133236
12/13/11 06:51 PM
12/13/11 06:51 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
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His valves have 3/8" (stone-age) stems. So to save a few dollars he's going to buy bare heads and ream the valve guides out to 0.375", at least that's what I am guessing. Can you tell I think it's a bad idea? Going to extra lengths to add mass to your valvetrain seems to be going backwards, also adding a larger protrusion in the valve bowl.
RR, if this is your plan I vote for the Stealths. They are about a finished product while EVERYTHING about the Supers is unfinished IIRC.
Well I went back to the website. It looks like they may have seats and guides installed. I'd hate to have to start installing seats and guides without a proper machine shop.
The difference between 11/32 and 3/8 is only 0.03125, certainly there's enough meat in the guides for that. They're probably standard 0.502" diameter guides pressed into a 0.500" bore. Back in the day the bore in the head was the same 0.500 for either ID guide. Don't sweat it.
One last thought: Better check if the SS heads use stock length valves!
R.
Last edited by dogdays; 12/13/11 07:02 PM.
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Re: "stealth" or "super stealth" heads which to get??
[Re: dogdays]
#1133238
12/13/11 08:14 PM
12/13/11 08:14 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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alright from scratch what I have is a set of NIB Manley 3/8 2.14/1.81 valves, a pair of bare 915's. a pair of bare blasted 452's a pair of cruddy 452 take offs complete. A 451 coming together and a 535 RB next (have block/4.5" crank). Top priority right now is heads. The KB pistons have the tall machinable dome & no idea where my height is going to fall but want to run pump gas & definitely want .040" quench. Double R I had just assumed that if the dia is not an issue and can ream the guides then I assumed the height would be the same/close. The "supers" have seats/guides installed & I'd have a guy ream the guides and I'd port them myself. That's the plan stan (so far). I'd think the larger supers would be the way to go unless you guys persuade me otherwise
live every 24 hour block of time like it's your last day on earth
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Re: "stealth" or "super stealth" heads which to get??
[Re: RapidRobert]
#1133243
12/13/11 09:20 PM
12/13/11 09:20 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
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Quote:
alright from scratch what I have is a set of NIB Manley 3/8 2.14/1.81 valves, a pair of bare 915's. a pair of bare blasted 452's a pair of cruddy 452 take offs complete. A 451 coming together and a 535 RB next (have block/4.5" crank). Top priority right now is heads. The KB pistons have the tall machinable dome & no idea where my height is going to fall but want to run pump gas & definitely want .040" quench. Double R I had just assumed that if the dia is not an issue and can ream the guides then I assumed the height would be the same/close. The "supers" have seats/guides installed & I'd have a guy ream the guides and I'd port them myself. That's the plan stan (so far). I'd think the larger supers would be the way to go unless you guys persuade me otherwise
why not just use a set of 88cc edelbrocks? pistons will fit with little to no machining. sell the manely valves, and happy motoring.
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Re: "stealth" or "super stealth" heads which to get??
[Re: RapidRobert]
#1133245
12/13/11 09:51 PM
12/13/11 09:51 PM
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Joined: Feb 2005
Posts: 4,321 Prospect, PA
BSB67
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Maybe start with a performance goal and budget. If they don't match, adjust accordingly.
Yes my budget never matches my goal but yes point taken But if the regular stealths cannot handle the requirements of 535 cubes then it'd be smart to start with the supers & worry about paying for em later
The 535 does not have any requirements. You might have a performance expectation however. A 535 can run fine on factory original 516s. Stealths can easily make 600 hp.
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Re: "stealth" or "super stealth" heads which to get??
[Re: superbee471]
#1133247
12/13/11 10:12 PM
12/13/11 10:12 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Thanks guys for all the support (& input). Sounds like I should be sensible & get the regular stealths either bare or complete (preferable) & a critical inspection of my choice.
live every 24 hour block of time like it's your last day on earth
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Re: "stealth" or "super stealth" heads which to get??
[Re: RapidRobert]
#1133248
12/13/11 10:21 PM
12/13/11 10:21 PM
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Joined: Mar 2005
Posts: 862 Iowa State fan
kilroy
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Quote:
Thanks guys for all the support (& input). Sounds like I should be sensible & get the regular stealths either bare or complete (preferable) & a critical inspection of my choice.
Not me I would go with the supers. I have a ache to get some but not anywhere in my budget. Go big especially planning for the 535. Then you can cam down some and still have the air you want, instead of trying to get air in when the ports are to small.
If you home port though look at there photos on the web because there are some THIN spots in the casting.
my vote if for the supers.
Last edited by kilroy; 12/13/11 10:22 PM.
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Re: "stealth" or "super stealth" heads which to get??
[Re: kilroy]
#1133249
12/13/11 10:37 PM
12/13/11 10:37 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Dammitt Kilroy I just may have to as Capitol 1 wants to send me some plastic but the quality control issues are worrysome but 471 said they have a warranty avail which might be good preventative medicine
live every 24 hour block of time like it's your last day on earth
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