Intake Gasket debate

AZ442 · July 22nd, 2009, 10:22 AM

Im changing an intake gasket on a 425 in my 70 442 with a performer intake. What gasket is best and to use end seals or not? I have the turkey tray #MS96004

ent72olds · July 22nd, 2009, 05:38 PM

I throw away the end seals and use a wall of RTV black, although the first one I did (out of 3 with those intakes) I used the rubber seals and it still hasn't leaked(10yrs)...after hearing all the horror stories, the next two just the RTV! I also used the tray, the most important thing is to use the rtv around the water ports(both sides of tray) and gaskicinch around the remaining ports(again, both sides of tray)....also key is making sure the little pilot tabs(on the tray) are cleanly seated in the holes on the heads!

Warhead · July 23rd, 2009, 04:42 PM

Mr Gasket 404/405
I use the end seals coated in Indian head sealer, and do NOT have problems.
Water ports with indianhead both sides.
Gaskacinch around all other ports.
I do not run the turkey tray.
If I do, the ports have been cut off with tin snips.
Jim

AZ442 · July 24th, 2009, 07:05 AM

Thanks for your responses. Maybee I have read to meny different opinions.
I'm new to this site and like the friendly additude much better.

redoldsman · July 24th, 2009, 08:40 AM

This has been debated and redebated on here. I think the only thing you will find consensous on is the RTV on the end gaskets.

AZ442 · October 27th, 2009, 09:48 AM

Well, used black RTV in the front and rear end seals, now leaking oil from the front. I will use a new turkey tray and try again.

My thought is to use the rubber end seals this time and center punch the rails and the intake, use a light film of RTV on the bottom of the seal and on the top.

Your Thoughts?????? Please

Four Four Tony · October 30th, 2009, 08:00 AM

The times I've used RTV instead of end seals I had leaks. Like someone above said use the end seals with Indian Head or some similar sticky gasket goop and you should be okay especially with an aluminum intake. The only time I've ever had trouble with an end seal was with a cast iron intake because I had to slide the intake forward or back and the seal went with it.

Eric Anderson · October 30th, 2009, 08:09 AM

I use the end seals never had a problem, I think Tony hit the nail on the head about running into trouble if you end up sliding the intake around and twisting the seal.

442scotty · October 30th, 2009, 08:12 AM

Before taking that intake off to reseal the ends I would try cleaning the leak area with some thinner/cleaner then just run a bead over the leak...I tried that once...sealed just fine.

AZ442 · October 30th, 2009, 08:33 AM

Thanks gents.
I will have the intake off for a few days doing other work (clean and paint)at the same time. I may get everything clean punch the front and back rails and seal the bottom of the end seals down to the block a day before I install the intake and then install a light coat of sealer to the top of the end seals.

This may keep them from sliding???????????

kaz442 · October 30th, 2009, 12:49 PM

Flepro #1356 the best intake gaskets out there. Throw away the end seals and use a 3/8" bead of silicon on front and rear rails. Also give a little extra silicon where the rails meet the heads. JKaz

July 22nd, 2009, 10:22 AM	#1 (permalink)
AZ442 Registered User Join Date: Jul 2009 Location: Arizona Posts: 60	Intake Gasket debate Im changing an intake gasket on a 425 in my 70 442 with a performer intake. What gasket is best and to use end seals or not? I have the turkey tray #MS96004

July 22nd, 2009, 05:38 PM	#2 (permalink)
ent72olds Registered User Join Date: Aug 2006 Location: LI,NY Posts: 786	I throw away the end seals and use a wall of RTV black, although the first one I did (out of 3 with those intakes) I used the rubber seals and it still hasn't leaked(10yrs)...after hearing all the horror stories, the next two just the RTV! I also used the tray, the most important thing is to use the rtv around the water ports(both sides of tray) and gaskicinch around the remaining ports(again, both sides of tray)....also key is making sure the little pilot tabs(on the tray) are cleanly seated in the holes on the heads! __________________ Erik Turner 65 Vista Cruiser 72 Cutlass

July 23rd, 2009, 04:42 PM	#3 (permalink)
Warhead Registered User Join Date: Mar 2008 Location: Phx, AZ Posts: 309	Mr Gasket 404/405 I use the end seals coated in Indian head sealer, and do NOT have problems. Water ports with indianhead both sides. Gaskacinch around all other ports. I do not run the turkey tray. If I do, the ports have been cut off with tin snips. Jim Last edited by Warhead; July 23rd, 2009 at 04:47 PM..

July 24th, 2009, 08:40 AM	#5 (permalink)
redoldsman Proud Viet Nam Veteran Join Date: Dec 2006 Location: Rowlett, TX Posts: 480	This has been debated and redebated on here. I think the only thing you will find consensous on is the RTV on the end gaskets. __________________ redoldsman

October 27th, 2009, 09:48 AM	#6 (permalink)
AZ442 Registered User Join Date: Jul 2009 Location: Arizona Posts: 60	Here we go again Well, used black RTV in the front and rear end seals, now leaking oil from the front. I will use a new turkey tray and try again. My thought is to use the rubber end seals this time and center punch the rails and the intake, use a light film of RTV on the bottom of the seal and on the top. Your Thoughts?????? Please __________________ Only in your dreams 1970 442 4 Speed 2008 Chrysler 300C (hemi) 1989 Expedition 4x4 1984 Hallett 19'

July 24th, 2009, 07:05 AM	#4 (permalink)
AZ442 Registered User Join Date: Jul 2009 Location: Arizona Posts: 60	Thanks for your responses. Maybee I have read to meny different opinions. I'm new to this site and like the friendly additude much better.

October 30th, 2009, 08:00 AM	#7 (permalink)
Four Four Tony Car Junkie Join Date: Oct 2009 Location: Wakefield, Massachusetts Posts: 8	The times I've used RTV instead of end seals I had leaks. Like someone above said use the end seals with Indian Head or some similar sticky gasket goop and you should be okay especially with an aluminum intake. The only time I've ever had trouble with an end seal was with a cast iron intake because I had to slide the intake forward or back and the seal went with it. __________________ Tony 69 442 convert, 400 automatic, lots of options 82 Cutlass wagon, turbo Buick powered, in progress

October 30th, 2009, 08:09 AM	#8 (permalink)
Eric Anderson Registered User Join Date: Oct 2008 Location: North East PA Posts: 362	I use the end seals never had a problem, I think Tony hit the nail on the head about running into trouble if you end up sliding the intake around and twisting the seal. __________________ My70Cutlasshe who has the most toys when he dies...wins

October 30th, 2009, 08:12 AM	#9 (permalink)
442scotty Registered User Join Date: May 2008 Location: Calgary Alberta Posts: 228	Before taking that intake off to reseal the ends I would try cleaning the leak area with some thinner/cleaner then just run a bead over the leak...I tried that once...sealed just fine.

October 30th, 2009, 08:33 AM	#10 (permalink)
AZ442 Registered User Join Date: Jul 2009 Location: Arizona Posts: 60	Thanks gents. I will have the intake off for a few days doing other work (clean and paint)at the same time. I may get everything clean punch the front and back rails and seal the bottom of the end seals down to the block a day before I install the intake and then install a light coat of sealer to the top of the end seals. This may keep them from sliding??????????? __________________ Only in your dreams 1970 442 4 Speed 2008 Chrysler 300C (hemi) 1989 Expedition 4x4 1984 Hallett 19'

October 30th, 2009, 12:49 PM	#11 (permalink)
kaz442 Registered User Join Date: Sep 2007 Location: NJ Posts: 176	Flepro #1356 the best intake gaskets out there. Throw away the end seals and use a 3/8" bead of silicon on front and rear rails. Also give a little extra silicon where the rails meet the heads. JKaz __________________ 72 442 conv. 455 +.060 th400 3.31 12 bolt 70 F85 490 stroker, th400 3.73 Strange S60 87 Buick GN

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
455 Radiator debate: Aluminum vs Brass	cfair	Big Blocks	1	May 31st, 2009 10:18 AM
Intake Gasket? (valley pan?)	Flye	Big Blocks	5	May 12th, 2009 06:30 PM
Intake Manifold Gasket	Olds64	Big Blocks	19	January 1st, 2009 12:40 PM
Family Debate	Newkid8	Cutlass	11	January 21st, 2008 01:29 PM
Need Help finding Gasket	Olds64	Interior/Upholstery	1	October 29th, 2007 07:13 PM