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2025 c3 ('68-'73) of the Year Finalist - Unmodified
2025 Corvette of the Year Finalist - Modified
2024 C1 of the Year Winner - Modified
2023 C1 of the Year Finalist - Modified
2023 C3 of the Year Finalist - Unmodified
2022 C1 of the Year Finalist - Modified
2020 C1 of the Year Finalist - Modified
2019 C1 of Year Finalist (performance mods)
2018 C1 of Year Finalist
Since my last posting of our 71, it's received a Bloomington Gold and NCRS Top Flight awards. Next week, it will be part of the Bloomington Gold collection in Charlotte. Stop by and say hello.
Since my last posting of our 71, it's received a Bloomington Gold and NCRS Top Flight awards. Next week, it will be part of the Bloomington Gold collection in Charlotte. Stop by and say hello.
Stunning and a twin to mine which has an older Top Flight
- My original paint 1971 LT1 # 21783 was on the cover of Vette Vues last month - with an article about it and the Original Black 1971 LT1 #11130 that my brother ( juggernautZ06 ) and I bought last year- written by Scott Teeters, I shot the photos with a Canon 60D and either a 17-55 F2.8 or a 70 200 F4L https://vette-vues.com/september-202...vues-magazine/
Looking for some info on the Holley to Intake Manifold gaskets for specifically the 1970 LT-1. Mine is an early build based on VIN of 5774 and a friend told me the early builds left the factory with one beige insulating gasket while late builds left the factory with the insulating gasket and two thin gaskets. For those that have a '70 LT-1 can you let me know how yours is setup? I recently had my Holley rebuilt and the rebuilder sent it back to me with the 3 gasket setup. Since re-installing the carb the vacuum pressure is low and it runs terrible - hesitation, etc. The car did not have this issue prior to the carb being rebuilt and it only had 1 thin gasket between carb and manifold prior to rebuild. I am looking to see how other early '70 build LT-1s have their carb setup specifically the gaskets. I have the four mounting bolts tightened to 65 In-Hg which is in range of the recommended 60-80. Maybe I have a vacuum leak but with a current vacuum pressure reading of 5-6 that is really low. I am looking for the leak but to no avail yet.I honestly think it is in the gasket setup but not sure. One last thing the air/fuel mixture screws are set at 2 turns out and the floats are perfect. Thanks.
Looking for some info on the Holley to Intake Manifold gaskets for specifically the 1970 LT-1. Mine is an early build based on VIN of 5774 and a friend told me the early builds left the factory with one beige insulating gasket while late builds left the factory with the insulating gasket and two thin gaskets. For those that have a '70 LT-1 can you let me know how yours is setup? I recently had my Holley rebuilt and the rebuilder sent it back to me with the 3 gasket setup. Since re-installing the carb the vacuum pressure is low and it runs terrible - hesitation, etc. The car did not have this issue prior to the carb being rebuilt and it only had 1 thin gasket between carb and manifold prior to rebuild. I am looking to see how other early '70 build LT-1s have their carb setup specifically the gaskets. I have the four mounting bolts tightened to 65 In-Hg which is in range of the recommended 60-80. Maybe I have a vacuum leak but with a current vacuum pressure reading of 5-6 that is really low. I am looking for the leak but to no avail yet.I honestly think it is in the gasket setup but not sure. One last thing the air/fuel mixture screws are set at 2 turns out and the floats are perfect. Thanks.
James - your car looks amazing above!!
Early 1970 Holley-equipped engines used a one-eighth-inch -thick tan colored one. Afterwards, all models used onefourth-inch-thick insulators with black plastic spacers embedded in the tan gasket.
Unless your car was delivered to California if it was you would have fuel vapor charcoal canister installed. Then you would have this gasket setup.
Only 1970 vehicles equipped with California emissions had a brushed aluminum heat shield installed between the carburetor and the intake manifold and a thin paper gasket between the intake manifold and the shield. Heat-insulating inserts fitted over the carburetor mounting bolts to reduce heat transfer through the bolts.
For 1971 and 1972, Rochester and for all Holley-equipped Corvettes it was 1/4-inch thick, except 1970 LT1 which was 1/8-inch thick.
Paul, if that is what is in the manual, it's wrong (thought Gary had changed that, but maybe not?). I know that his June built 1970 has the same thick gasket.
All of the LT-1 gaskets were of the "thick" variety. These are photos of the original gasket to 1970 #16965 as well as the current reproduction. 1970 #00538 was identical to this.
The reproduction gasket is near perfect (right down to the stamped part number) and is available from Richard Fortier.
The carburetor is retained by studs/nuts... Not by bolts that bearcatfan9 mentioned.
Unless your car was delivered to California if it was you would have fuel vapor charcoal canister installed. Then you would have this gasket setup.
Only 1970 vehicles equipped with California emissions had a brushed aluminum heat shield installed between the carburetor and the intake manifold and a thin paper gasket between the intake manifold and the shield. Heat-insulating inserts fitted over the carburetor mounting bolts to reduce heat transfer through the bolts.
Yes... The only variation would be the NA9 equipped cars that had the gasket with the built in metal heat shield that you described.
Thanks Stan used an earlier Manual/Guide have several versions. Updated the language to show early/late 1970 unless that has changed. Thought Terry's LT-1 had a slightly thinner gasket then later 1970.
Terry's gasket was used by Richard to make the new ones. Ask me how I know. I agree with Stan, all were thick Terry's car, 2161, has the thick gasket.
I sent an original thick gasket along with 2 paper thin gaskets, one for the intake side, one for the carburetor side to Keith. I thought it would blend in better on an original car.
Gb
Given the roads, the traffic, and my general decrepidness at my ancient age, I don't get many good opportunities to stand on it... OMG, it's like firing off a JATO bottle when passing 4 grand!
FYI. I found the history of this LT1 on the C3registry, the the previous owner confirmed the block has been replaced. Another LT1 re-stamp. Talked to the current seller in Ohio and he swears it is original. I sent him the old e-Bay listing (where he bought it) and it clears stated the block was replaced. Sad that people are such scammers.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
