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| looking for replacement for 1.70 in. ss engbuilder exhaust valve https://slantsix.org/forum/viewtopic.php?t=61846 |
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| Author: | wjajr [ Sat Jan 20, 2018 8:53 am ] |
| Post subject: | looking for replacement for 1.70 in. ss engbuilder exhaust valve |
I'm getting ready to pull head to see what is causing suck-back at tail pipe and would like to have a replacement oversize exhaust valve part number and supplier line up if needed. I installed new Engbuilder over sized ss valves in '08, and that outfit looks to be out of business. If someone knows of an off the shelf replacement, or something close a machinist can easily resize to make do, I'm all ears. Now there is a good chance the valve is ok, not bent or burnt, and problem is with spring, or guide. All I know is # 5 & 6 plugs look to be a bit lighter in color compared to the other four leading me to suspect both were a bit lean due to suck-back during cylinder fill. |
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| Author: | Rick Covalt [ Sat Jan 20, 2018 9:02 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
SI Valves have drop in valves . Do a search on here I know there are some threads about them. |
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| Author: | DusterIdiot [ Sat Jan 20, 2018 9:24 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Looks like in Si's new catalog the 1.70 intakes are SEV-2310-S and 1.44 exhausts are 2309-S... be careful as it looks like the part number for the standard size valves are 2310 and 2310 (no -S) |
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| Author: | wjajr [ Sun Jan 21, 2018 8:57 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Thanks. |
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| Author: | wjajr [ Tue Jan 23, 2018 6:37 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Lately I have been an extreme lazy-ass not wanting to do much. Yesterday I finally got it in gear, pulled off valve train, stuffed cylinder with a length of my finest clothesline and attempted to remove #6 & #5 exhaust valve springs. I could not get the keepers out, but was able to move valve up and down enough to feel it easily seat with a nice clean sounding clink. I now don't think sticky valve or bent valve is the problem, but perhaps a burnt valve or seat. Looks like a head pull in in my near future, and a trip to Harbor Fright with birthday gift card for more jack stands as Corn Binder PU project is using all I have on hand. |
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| Author: | csheehy [ Thu Jan 25, 2018 3:42 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
SI told me they don't have any 1.70's in stock and are not sure when they will. That was a few weeks ago - interested in hearing if inventory has changed. |
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| Author: | Badvert65 [ Thu Jan 25, 2018 3:56 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Well, I asked them about the 1.44 Ex and 1.70 In valves. This is what I was told just today: >SORRY but out of stock on these will not have for several months unfortunately i have the 1.44 ex but only the 1.620 std intake $10.50 each stainless race type. let me know here with ship adress and credit card info we ship ups us dhl international thanks lee |
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| Author: | DusterIdiot [ Thu Jan 25, 2018 4:37 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
that's not good news... I wonder what Mopar V-8 has an valve close enough to use those as intakes (and have them turned and reground)? |
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| Author: | Rick Covalt [ Thu Jan 25, 2018 6:08 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Some Big Block exhaust valves are 1.74 and 3/8 stem. Cant remember how much longer they are though. Just did a quick search and I think they are as follow: 4.869 Big Block 4.770 Slant 6 +.100? I think some people have used that much longer valves without problems. Someone will straighten me out if I'm wrong |
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| Author: | Badvert65 [ Thu Jan 25, 2018 6:21 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
They are about a quarter inch longer than a slant valve. |
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| Author: | Rick Covalt [ Fri Jan 26, 2018 3:26 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
Matt I just looked at Summit and they listed a big block exhaust valve at 4.90 length. Others I have seen at 4.87. https://www.ebay.com/itm/Milodon-Street ... 3.l4275.c1 |
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| Author: | Badvert65 [ Fri Jan 26, 2018 4:42 am ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
I was just looking at the SI catalog where they list the big block valve length as 4.86" and the slant valve length as 4.64" I have plenty of big block (and slant 6) valves on hand so it would be easy to double check. |
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| Author: | DadTruck [ Fri Jan 26, 2018 3:56 pm ] |
| Post subject: | Re: looking for replacement for 1.70 in. ss engbuilder exhaust valve |
I have not installed them yet, but going in the slant six head that I am building are a set of Ford 289 valves that I purchased from Josh225,,some time ago. Intake SEV 2564 1.780 head diameter Exhaust SEV 2563 1.450 head diameter The length is 4.870 These have 5/16 diameter stems |
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