Intake gaskets for 520 sbc heads

Lyn Smith · 04-02-2018, 02:06 PM

What Fel Pro gasket number works best for the 520 t SBC heads?I see some of their numbers look pretty big.Thanks .The Jr Stocker/Q/SA 265 is going together.

Ed Wright · 04-02-2018, 03:18 PM

100 was the old Mr Gasket number. Might be able to find a cross reference.

FED 387 · 04-02-2018, 07:12 PM

Fel Pro says their number 1256 is a mr gasket 100 crossover. 100 still available from Holley/ MrGasket

Tom Meyer · 04-02-2018, 10:23 PM

1245 felpro is the thicker gasket, with the angle milling of the heads and intake they raise the intake up for a better shot at the intake valve ?? Had to do some trimming on my SS 520s. Tom

Ed Wright · 04-03-2018, 02:43 PM

The 100s were about a perfect fit on the stock 520s on my old Jr Stockers. I would expect some trimming on SS heads.

james schaechter · 04-05-2018, 12:04 PM

The 100s will work. We had Cometic make some,small port thick ones for us a long time ago and they were perfect. I doubt if they have a part number for them. Might be able to look them up under our name. We haven’t run 283s in awhile, but I know Cometic will also make what you need if you send them the sizes or a trace of the intake

04-02-2018, 02:06 PM	#1
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,121 Likes: 217 Liked 841 Times in 156 Posts	Intake gaskets for 520 sbc heads What Fel Pro gasket number works best for the 520 t SBC heads?I see some of their numbers look pretty big.Thanks .The Jr Stocker/Q/SA 265 is going together.

04-02-2018, 03:18 PM	#2
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: Intake gaskets for 520 sbc heads 100 was the old Mr Gasket number. Might be able to find a cross reference. __________________ Ed Wright 4156 SS/JA

04-02-2018, 07:12 PM	#3
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,349 Likes: 323 Liked 280 Times in 150 Posts	Re: Intake gaskets for 520 sbc heads Fel Pro says their number 1256 is a mr gasket 100 crossover. 100 still available from Holley/ MrGasket Last edited by FED 387; 04-02-2018 at 07:18 PM. Reason: Spelling

04-02-2018, 10:23 PM	#4
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 900 Likes: 51 Liked 301 Times in 105 Posts	Re: Intake gaskets for 520 sbc heads 1245 felpro is the thicker gasket, with the angle milling of the heads and intake they raise the intake up for a better shot at the intake valve ?? Had to do some trimming on my SS 520s. Tom __________________ Tom Meyer 5240 SS Stock ???

04-03-2018, 02:43 PM	#5
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: Intake gaskets for 520 sbc heads The 100s were about a perfect fit on the stock 520s on my old Jr Stockers. I would expect some trimming on SS heads. __________________ Ed Wright 4156 SS/JA

04-05-2018, 12:04 PM	#6
james schaechter VIP Member Join Date: Dec 2004 Location: Cumming GA Posts: 1,928 Likes: 1,064 Liked 1,212 Times in 249 Posts	Re: Intake gaskets for 520 sbc heads The 100s will work. We had Cometic make some,small port thick ones for us a long time ago and they were perfect. I doubt if they have a part number for them. Might be able to look them up under our name. We haven’t run 283s in awhile, but I know Cometic will also make what you need if you send them the sizes or a trace of the intake __________________ James Schaechter 3163 STK

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