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Manley Valve Question |
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Javelin_GT
AMC Addicted Joined: Feb/15/2008 Location: Colorado Status: Offline Points: 1066 |
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Posted: Jan/17/2018 at 8:37am |
I have notes these valves will work OK in a V8 head. Can anyone confirm. Or has anyone used them?
Manley 11892-8 Valve Head Diameter (in): 2.080 in. Overall Valve Length (in): 4.873 in. Valve Stem Diameter (in): 0.372 in. Valve Tip Length (in): 0.275 Valve Material: NK-842 stainless steel Lock Groove Quantity: 1-groove Lock Groove Style: Conventional Approximate Weight (g): 122 |
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3806 |
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I don't know on that specific valve, but the Chrysler 2.08 intake and 1.74 exhaust used to be popular for AMC 20 yrs ago (I have used them). This isn't as common anymore, most use the SBC based valves, many options and lighter.
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68 amc
AMC Apprentice Joined: Sep/14/2011 Location: North Syracuse Status: Offline Points: 164 |
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I run the mopar valves or Milodon 2.08 &1.74 they are 3/8 stem ,Chevy are 11/16
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cny amc,68 JAVELIN 360ci street& strip car 10:90
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one bad rambler
AMC Addicted Joined: Jan/09/2008 Location: On The Island Status: Offline Points: 2007 |
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SBC uses 11/32 valve stem rather than AMC 3/8...I have Chevy intake valves and Ford exhaust valve in my 64 American...I don`t think the flow changes as a posed to the overall weight of the valve..and of coarse the easy to get...and cheaper
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68 AMX 390 4 Speed,68 American,64 American 2 Door Wagon Altered Wheelbase,78 Concord Build 360,727,8.8
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Ramzilla
AMC Nut Joined: Jan/28/2019 Location: arizona Status: Offline Points: 354 |
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What does it take to install those Manley valves 2.080 int & 1.74 exh in 1969 390 Heads. Can it be done using stock seats. Or is more involved. And who would you recommend. Im here in Arizona. Also are those Mopar valves intake a 45 degree valve. I know factory AMC intake are 30 degree valve. Thanks in advance Larry |
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SC Rambler
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Hurst390
AMC Addicted Joined: Apr/20/2008 Location: secret Status: Offline Points: 5818 |
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5919 |
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Info from reading, not doing.
4.873" length should be 'ok', on-hand notes say 4.90x" is stock AMC.
'69 S/S Crane heads used the Mopar 2.080" / 1.740" but turned down the 2.080" Head Dia to 2.065" Dia. and 'opened up' the combustion chambers using: "And Cylinder Head Combustion Chamber to Valve Head was Un-Shrouded by using a 2.375" Dia radiused Cutter for the Intake, and a 2.063" Dia radiused Cutter for Exhaust." "Super Stock AMC Finished Cylinder Head Volume = 58 cc's +/- 1 cc's." Information above from Car Craft 1969 4-Part Clone S/S AMX Build articles. If anyone could graciously provide legible images of Part 1 of that series of articles which is found in the July 1969 edition of Car Craft Magazine, it would be greatly appreciated. |
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greendragon
AMC Apprentice Joined: Feb/22/2016 Location: huntsville ala Status: Offline Points: 120 |
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What does it take to install those Manley valves 2.080 int & 1.74 exh in 1969 390 Heads. Can it be done using stock seats. Or is more involved. And who would you recommend. Im here in Arizona. Also are those Mopar valves intake a 45 degree valve. I know factory AMC intake are 30 degree valve. like to know this too...looking to upgrade this winter.. |
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moneypit
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Ramzilla
AMC Nut Joined: Jan/28/2019 Location: arizona Status: Offline Points: 354 |
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SI has oversize stainless valves for AMC 390 intake SEV 2662 60 2.080 dia 4.900 length and exhaust SEV 2813 dia 1.688 4.910 length in their catalogue. Has anyone used these on 1969 390 heads. It would mean cutting seats .060 larger. Can stock valve seats be safety cut 0.060 over without losing seat hardness. And would compression pockets in head need to be modified larger. Going to see if they are still available through their distributor Ron's RPM. Thanks for any info Larry
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SC Rambler
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Ramzilla
AMC Nut Joined: Jan/28/2019 Location: arizona Status: Offline Points: 354 |
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Can't find the SI intake 2.080 valves looks like they do not make them any more. But SI does have mopar port series valves all sizes.
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SC Rambler
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