C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old May 26, 2016 | 11:11 AM
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Default 1974 454

Can anyone tell me if the 74 454 has a mounting plate for the fuel pump?

i purchased the ones you see everywhere, but it will not fit.

If i do need one i need the diamond shaped mounting plate, not the rectangle shaped one.

thanks
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Old May 26, 2016 | 11:24 AM
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Hi bb,
I believe that while 350 cu.in. engines use a mounting plate, 454 cu.in. engines only use a gasket between the fuel pump and the block's flange.
The proper fuel pump mounting is shown in the AIM section for the 454 option.
Regards,
Alan

Last edited by Alan 71; May 26, 2016 at 11:26 AM.
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Old May 26, 2016 | 12:46 PM
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Alan is correct, the parts book only shows the plate being used on small blocks. Have you tried mounting the pump with gasket directly to the block and ran into an issue?
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Old May 26, 2016 | 02:18 PM
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Originally Posted by MelWff
Alan is correct, the parts book only shows the plate being used on small blocks. Have you tried mounting the pump with gasket directly to the block and ran into an issue?
No i haven't tried directly yet. i was just trying to see if i could find the correct way the first time, that was all.


Thanks for the help, i will try without a plate.
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Old May 26, 2016 | 06:02 PM
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No plate on big blocks.


JIM
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Old May 26, 2016 | 07:43 PM
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Pipe plug on the block right under the fuel pump flange for access to the pushrod.
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