header gaskets - The 1947 - Present Chevrolet & GMC Truck Message Board Network

76bonanza · 04-23-2007, 10:58 PM

Planning on getting some aluminum header gaskets when shopping for them i noticed they have square and oval. I have a 70s block and heads from around the same period. What are the dates or what that determines the head port?

Mudder · 04-24-2007, 05:12 AM

They are most likely the square or rectangle. I use manifold gaskets on mine with great results.

Musclerodz · 04-24-2007, 11:53 AM

Quote:

Originally Posted by 76bonanza

Planning on getting some aluminum header gaskets when shopping for them i noticed they have square and oval. I have a 70s block and heads from around the same period. What are the dates or what that determines the head port?

I assume you are talking about small block, most likely you have the square port, round ports were not used that much until you get to the LSx, and "D" ports are mainly LT1 but also the FASTburn 385 and a couple others. We have them in our store as cheap as you will find good ones for

Mike

EAST SIDE LOW LIFE · 04-24-2007, 11:10 PM

Ask for "Percey's aluminum gaskets. They are a little more expensive but are reusable, life time guarantee and they work!

esll.

76bonanza · 06-10-2007, 11:08 AM

So if my headers are oval and my heads are square should I use the square ones?

sodak69c10 · 06-10-2007, 02:45 PM

i just put some aluminized gaskets on my 406 i also sprung the the header lock bolts that have a little wire that goes between everytwo bolts made by SPECTRE worth it i tightened them once and haven't touched them since

04-23-2007, 10:58 PM	#1
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	header gaskets Planning on getting some aluminum header gaskets when shopping for them i noticed they have square and oval. I have a 70s block and heads from around the same period. What are the dates or what that determines the head port? __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

04-24-2007, 05:12 AM	#2
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: header gaskets They are most likely the square or rectangle. I use manifold gaskets on mine with great results.

04-24-2007, 11:10 PM	#4
EAST SIDE LOW LIFE Senior Member Join Date: Mar 2007 Location: VANCOUVER ISLAND, B.C., Canada Posts: 1,602	Re: header gaskets Ask for "Percey's aluminum gaskets. They are a little more expensive but are reusable, life time guarantee and they work! esll. __________________ Tomorrow is for doing today's stuff. ************************************* This truck has just the right amount of energy for me! Author: Warren Lake .... (member) Last edited by EAST SIDE LOW LIFE; 04-24-2007 at 11:11 PM.

06-10-2007, 11:08 AM	#5
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	Re: header gaskets So if my headers are oval and my heads are square should I use the square ones? __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

06-10-2007, 02:45 PM	#6
sodak69c10 Registered User Join Date: Mar 2007 Location: Rapid City, South Dakota Posts: 285	Re: header gaskets i just put some aluminized gaskets on my 406 i also sprung the the header lock bolts that have a little wire that goes between everytwo bolts made by SPECTRE worth it i tightened them once and haven't touched them since __________________ ,Clint LOUD PIPES SAVE LIVES 69 C-10 short stepside 406 sbc, 02 YAMAHA WR250F, 07 SUZUKI SV650S, 81 Grand Prix 355 sbc, 81 XT 500 YAMAHA

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