what are 3/8 studs limits? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 6 Old 05-22-2019, 08:26 PM Thread Starter
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what are 3/8 studs limits?

have Edelbrock E-street heads with K-750 springs. 35-512-8 cam with 1.72 rockers and 3/8 studs. its on a truck so rpm doesnt really go above 5k and if i do its usually really short, but i have held it at 4k for several minutes straight on a couple occasions. it usuing the stock studs which i imagine are not the best since there for the E-street heads. im debating if i should be going 7/16 studs and rockers, stay with current Edelbrock studs, or get some ARP 3/8 studs. figuered for a not so high revving engine it should be fine but i image the 1.72 rockers are pretty stressfull.

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post #2 of 6 Old 05-23-2019, 02:00 AM
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Put a girdle on it. Breakage is only part of the story. The other part is that you're not getting the lift that you've paid for.

Also bear in mind that your valve spring pressure isn't very high.

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post #3 of 6 Old 05-23-2019, 07:22 PM Thread Starter
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dont know if ill have room for a girdle. its got s GT40 intake and due to the firewall of the truck i cant use any spacer.

would ARP studs be a wise decision then to prevent flexing? if they were Performer heads, i might have a little more trust in the studs Edelbrock used but E-street i know isnt very good quality head and clearly isnt designed for roller cams to begin with. i imagine they are jsut some crappy chinease studs
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post #4 of 6 Old 05-23-2019, 08:43 PM
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dont know if ill have room for a girdle. its got s GT40 intake and due to the firewall of the truck i cant use any spacer.

would ARP studs be a wise decision then to prevent flexing? if they were Performer heads, i might have a little more trust in the studs Edelbrock used but E-street i know isnt very good quality head and clearly isnt designed for roller cams to begin with. i imagine they are jsut some crappy chinease studs
You can’t bash that sucker in with a bfh to clear?

1996 Mustang
347, 205 11R's, Box R Intake, Ported lower, custom comp cam, 42lb injectors, 255LPH, pro-m 80, 75mm Cheap-ass TB, 1 3/4 x 3in LT's, exhaust by me, A5 trans, 4.10

422WHP/456Ft/lb. Tuned using QH by Tony @ Tuners Inc.
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post #5 of 6 Old 05-25-2019, 01:41 AM
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You canít bash that sucker in with a bfh to clear?
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post #6 of 6 Old 05-25-2019, 11:06 AM Thread Starter
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as much as i would love to do that, i already tried some hammering to clear a 3/8" spacer because i worried i wouldnt get my valve covers to fit. but decided to take it back out because i couldn't get the back intake bolts in still and i had enough clearance.
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