![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Intake manifold oil fill neck cap
Can anyone tell me what the correct 710 cap is for the oil fill neck on a 4 barrel manifold and where I can get one? It had a push in cap when I got it and it slightly leaks occasionally.
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
|
Re: Intake manifold oil fill neck cap
That looks like a common oil fill cap you can get at your local auto parts store.
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
Really? It looks to me like it needs some type of twist in cap almost like a radiator cap. This is the factory caps that LMC has but none look right to me. Dang it picture went sideways .
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
#4 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
|
Re: Intake manifold oil fill neck cap
I agree that you need a twist on cap. Probably the LMC # 30-4122. I'm no expert, but I don't recall that type of filler used in the intake after the 283s and 327s and implementation of PCV valves. Prior to PCVs that type of filler (but without the restriction and notches at the top) that I recall seeing used a push on ventilated cap similar to the LMC 43-4350-C. What year and displacement is the engine? Is the intake original to the engine? Does thit have a PCV valve?
EDIT: My original 350 with a hole in the valve cover uses a twist on cap. The diameter of the hole measures 1.20 inches (slightly greater than 1.50" at the notches). If that's what yours measures, I'd again say you should get one like the LMC 30-4122. Last edited by FirstOwner69; 04-25-2018 at 02:50 PM. |
![]() |
![]() |
![]() |
#5 | |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
Quote:
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern Last edited by 1968 baby blue C10; 04-25-2018 at 10:04 PM. |
|
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
|
Re: Intake manifold oil fill neck cap
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
![]() |
![]() |
![]() |
#7 | |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
Quote:
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
|
![]() |
![]() |
![]() |
#8 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
|
Re: Intake manifold oil fill neck cap
I think the 307s still had that type. If so the valve covers wouldn't have the push in breathers like yours. IIRC
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
|
Re: Intake manifold oil fill neck cap
My 68,327 has the LMC cap #1.
Mike. ![]() |
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
I kind of figured that was the one it is but for some strange reason they have it listed as 250 and 292, weird.
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
I checked in my 68 user manual and it lists a PCV and crank case breather. Maybe the oil fill neck is from an older vehicle? Of course it being painted and the manifold not being painted makes me think it’s the original oil fill neck.
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
#12 |
Registered User
Join Date: Apr 2011
Location: formerly NY currentlyNC
Posts: 390
|
Re: Intake manifold oil fill neck cap
if that filler was original it would need to be one with a sealed twist-in cap like yours in order for the pcv system to be functional
__________________
1970 short step c10 leaf spring 454 |
![]() |
![]() |
![]() |
#13 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
Wow I never even thought about that. I’m going to have to get a new cap soon.
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
#14 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,619
|
Re: Intake manifold oil fill neck cap
Maybe you should remove the tube and plug the hole with a core plug.
https://www.google.com/search?tbm=is...HCcMCC0AUtcvM: |
![]() |
![]() |
![]() |
#15 | |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
Quote:
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
|
![]() |
![]() |
![]() |
#16 |
Senior Member
![]() ![]() Join Date: Mar 2016
Location: Near Canon City ,Colorado
Posts: 3,970
|
Re: Intake manifold oil fill neck cap
Napa #703-1692 Oil Filler Cap
__________________
'35 1/2 ton Pickup (bought 2020) '68 C10 Suburban (bought 2021) '72 K5 Blazer (bought 2013) '67 Stepside (bought 1997-sold 2021) '96 Bronco Eddie Bauer (inherited 2010) My 1st day here-'67 C10(sold)and '72 K5 Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=702056 "Another Blue Chevy"(1935) http://67-72chevytrucks.com/vboard/s...d.php?t=799203 ![]() ![]() |
![]() |
![]() |
![]() |
#17 |
Registered User
Join Date: Sep 2017
Location: Ravenswood, West Virginia
Posts: 239
|
Re: Intake manifold oil fill neck cap
__________________
68 C10 long-fleet, Long and low is the way to go. factory: 307 sbc, SM465 4-speed, 12 bolt 4.11 rear end. 75,000 original miles. Build:Ole Blue Millennial and can drive stick. ![]() "Too many people have opinions on things they know nothing about. And the more ignorant they are, the more opinions they have." -Thomas Hildern |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|