L98 #10088113 Heads

57fever

New Member
I am hoping someone can provide the height of the intake port for this head. So far, I can only determine that it is a raised D-port, but can't find specifications for the intake port.

Thanks!
 
I don't recall raised port or tall port design the L98 Corvette 113 & 128 Heads.
113 had the slight improved D-port exhaust.
Recall now standard Classic Chevrolet V8 intake port gaskets outside cross section area used.
Somewhere in the Archives here with a search.
Grumpy knows exactly.
 
I did an internet search and didn't find the exact lower part number Felpro lower intake manifold gasket used on Corvette 113 heads.
It's the same lower and upper intake gasket set used 1986-1991 years on C4 Corvette with 128 & 113 Aluminum heads.
Old post on Corvette Forum 2006 year guys said a 1970 Corvette or 1970 Camaro Z28 intake manifold gasket they used with perfect fit.
Another said he used the 1987-1995 GM TBI 350 Truck intake manifold gaskets exact match he said.
I think only way to know is look in a Vintage Felpro paperback catalog.
I have one.
Look today yet in there.
 
I looked in my Fel Pro Racing Paperback Catalog dated 2006 year.
#1256 is the Printoseal version of the classic SBC intake ports.
#1204 is embossed steel laminated with coating same as 1256 otherwise.
Port dimensions are 1.23" x 1.99".
Use that for your #113 Corvette Aluminum heads.
 
My Imgur hasn't worked for 2 days.
Took photos unable to post with Imgur photos hosting site.

#1256 & #1204 Felpro
 
find the closest intake gasket and use it as a guide to match the ports to as close as possible
COMMON SBC INTAKE GASKET PORTS
felpro # 1204=Port Size: 1.23" x 1.99"=2.448 sq inches
felpro # 1205=Port Size: 1.28" x 2.09"=2.67 sq inches
felpro # 1206=Port Size: 1.34" x 2.21"=2.96 sq inches
felpro # 1207=Port Size: 1.38" x 2.28"=3.146 sq inches
felpro # 1209=Port Size: 1.38" x 2.38"=3.28 sq inches
felpro # 1255 VORTEC=Port Size: 1.08" x 2.16"-2.33 sq inches
felpro # 1263=Port Size: 1.31" x 2.02"=2.65 sq inches
felpro # 1266=Port Size: 1.34" x 2.21"=2.96 sq inches
felpro # 1284 LT1=Port Size: 1.25 x 2.04''=2.55 sq inches
felpro # 1289 FASTBURN=Port Size: 1.30" x 2.31" 3.00 sq inches
 
https://pin.it/3k0NuCI

I made a Pinterest Account.
It's like a small movie of the photos.
Best to view on a Computer or Laptop. Had other image sharing accounts think they are dead now after 10-12 years.
 
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