need Mopar W-8 head info

FED 387 · 04-21-2008, 06:40 PM

Anybody know what size fitting goes on a Mopar W-8 cylinder head on the water crossover passages???? Kinda looks like a 3/4-16 NF thread with a tapered seat---Is this correct??? Thanx comp 387

340Cuda · 04-22-2008, 08:44 AM

If its the same as a W-9 I think its considered a female -8. The fittings I got for my
W-9 heads were "Earl's 985068 Blue Anodized Aluminum -6 AN Male to 3/4" -16 O-ring Port Adapter"

However my heads are out to have pistons fitted and I have not actually tried them in the heads.

Good Luck,
Bill Lamb

FED 387 · 04-22-2008, 06:26 PM

Thanx for the reply---kinda thought that's what it was but after playing with about 30 different fittings just trying to get a "good" fit on one they all start looking the same----Thanx again will try one to make sure it fits---Got the whole engine together never occured to me to think about a fitting til it's all assembled---Thanx comp 387

04-21-2008, 06:40 PM	#1
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,412 Likes: 508 Liked 329 Times in 177 Posts	need Mopar W-8 head info Anybody know what size fitting goes on a Mopar W-8 cylinder head on the water crossover passages???? Kinda looks like a 3/4-16 NF thread with a tapered seat---Is this correct??? Thanx comp 387

04-22-2008, 08:44 AM	#2
340Cuda VIP Member Join Date: Apr 2003 Location: Tulsa, Oklahoma Posts: 1,660 Likes: 3,813 Liked 761 Times in 331 Posts	Re: need Mopar W-8 head info If its the same as a W-9 I think its considered a female -8. The fittings I got for my W-9 heads were "Earl's 985068 Blue Anodized Aluminum -6 AN Male to 3/4" -16 O-ring Port Adapter" However my heads are out to have pistons fitted and I have not actually tried them in the heads. Good Luck, Bill Lamb

04-22-2008, 06:26 PM	#3
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,412 Likes: 508 Liked 329 Times in 177 Posts	Re: need Mopar W-8 head info Thanx for the reply---kinda thought that's what it was but after playing with about 30 different fittings just trying to get a "good" fit on one they all start looking the same----Thanx again will try one to make sure it fits---Got the whole engine together never occured to me to think about a fitting til it's all assembled---Thanx comp 387