Quick question for SB Engine Quest head owners...
#2314230
05/31/17 04:48 PM
05/31/17 04:48 PM
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Joined: Dec 2005
Posts: 2,886 Bowling Green KY / Nashville, ...
300by500
OP
master
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OP
master
Joined: Dec 2005
Posts: 2,886
Bowling Green KY / Nashville, ...
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I'm buying a set for a low $$$ mostly stock carbed 5.9 Magnum with a Hughes Whiplash cam. I ordered an "old" Whiplash grind that doesn't require machining the heads for bigger springs. Hughes claims that the Engine Quest valve guides will cause problems unless you buy a set from Hughes with their replacement bronze guides. Has anyone had issues with these heads out-of-the-box?
Last edited by 300by500; 05/31/17 04:51 PM.
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Re: Quick question for SB Engine Quest head owners...
[Re: 300by500]
#2317246
06/06/17 06:59 PM
06/06/17 06:59 PM
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Joined: Nov 2006
Posts: 733 jacksonville,FLORIDA
slammedR/T
super stock
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super stock
Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
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Dakota guys had problems with the older EQ heads seizing the valves in the guides, they were fixed with bronze liners installed into the original guides.
2000 Dakota R/T, 408 magnum, 727, Indy heads 1000cfm 4150 carb, 93 octane fuel. motor; 10.258 @ 132.78 200 shot; 9.262 @ 144.69 racemagnum
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Re: Quick question for SB Engine Quest head owners...
[Re: slammedR/T]
#2317531
06/07/17 09:33 AM
06/07/17 09:33 AM
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Joined: Feb 2006
Posts: 1,048 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,048
The Great White North
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Dakota guys had problems with the older EQ heads seizing the valves in the guides, they were fixed with bronze liners installed into the original guides. There was NO problem with the older EQ heads. These heads were never meant for the end user and were sold purposely with tight guides so the rebuild shops could size them to their preferred clearances. BUT then Hughes butted in and convinced EQ to change their tooling and send them with bronze liners which come WAY too loose--its actually ridiculous. I am however just finishing up a set and EQ has moved away from the crappy bronze liner thing. These heads are nice again. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: Quick question for SB Engine Quest head owners...
[Re: 300by500]
#2317535
06/07/17 09:49 AM
06/07/17 09:49 AM
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Joined: Jan 2003
Posts: 9,982 Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,982
Frostbitefalls MN (Rocky&Bullw...
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My set came with cast iron guides. They also came with .002 taper and extra clearance at the top of the guide. I decided that w a s too much, and opted for bronze inserts for longer life.
Last edited by gregsdart; 06/07/17 09:50 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Quick question for SB Engine Quest head owners...
[Re: RAMM]
#2318200
06/08/17 08:05 PM
06/08/17 08:05 PM
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Joined: Nov 2006
Posts: 733 jacksonville,FLORIDA
slammedR/T
super stock
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super stock
Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
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Yes there was, I know of three Dakota trucks and two ram trucks from my Dakota sites and a couple facebook pages that had problems with valves siezing and breaking with the older version heads. some were out of the box, some were installed and "checked" by a performance shop that I will not name to avoid a flame war.
Last edited by slammedR/T; 06/08/17 08:05 PM.
2000 Dakota R/T, 408 magnum, 727, Indy heads 1000cfm 4150 carb, 93 octane fuel. motor; 10.258 @ 132.78 200 shot; 9.262 @ 144.69 racemagnum
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Re: Quick question for SB Engine Quest head owners...
[Re: slammedR/T]
#2676356
07/10/19 06:18 PM
07/10/19 06:18 PM
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Joined: Jan 2008
Posts: 2,221 ILLINOIS
volaredon
top fuel
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top fuel
Joined: Jan 2008
Posts: 2,221
ILLINOIS
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interesting... where is the cutoff for older/newer? I rebuilt a 360 (stock) for a 01 Durango and used a set of EQs assembled, plopped them on out of the box.... went to $#!t with less than 3 hours of total run time. I put 6 miles on that engine, 3 of those miles were "non running" on the back end of a tow strap. I pushed the Durango back into the garage and "forgot" about it til this last weekend. I picked up a good used low mile 360 and decided to pull my brand new EQs off of the fouled engine, while I regasketed the whole engine before sticking it in there. SURPRISE//// #4 exhaust bent pushrod W T F? pull valve covers... #4 exhaust valve stuck. Pull heads. that valve is bent to He11 and I see the imprint in the head of my brand new piston. Heads are in the machine shop for repair as we speak. I built this engine in Oct/Nov 2016, and Durango has been sitting since then untouched. How would I know if I got Australian or China heads? This is the 3rd set of EQs I have bought and used, 1st set was bare, 2nd set was assembled, running fine on my son's Ramcharger, this being the 3rd set I have bought. The 1st 2 sets came shipped to my door, the "problem" set I picked up myself and paid for at the AAEQ Midwest warehouse in Chicago. I remember when I was there, they had PILES of these heads brand new in boxes...… I know 110% for sure, the bare heads I bought and put onto my 83 D250 were Austrailian cast. I had 5 cracked OEM heads here that I stripped, and cherry picked the best 2 heads' worth of hardware out of that 5 heads' worth, touched the valves up on a valve grinder, hand lapped then and put them on.
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Re: Quick question for SB Engine Quest head owners...
[Re: volaredon]
#2676427
07/10/19 10:30 PM
07/10/19 10:30 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I was JUST getting ready to buy another set from Eric Haugland of AAEQ in Las Vegas. I did have em checked out (not sure what I had to have done, it was a long time ago) but they worked OK. Should I call him & how to I tell if it is a legit set? (the first set were in New Zealand boxes).
live every 24 hour block of time like it's your last day on earth
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