2000 377 Scorpion questions! ASAP

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06-08-2021 | 05:20 PM

#11

hypforlife32

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Quote:

Originally Posted by Phazar454Mag

Since it is a 2000 Donzi 28zx with twin 377 Scorpions, then I assume we are talking about the blue 377 Scorpion engines from Mercury Racing.

I have the factory service manual for that engine, and it says:

Compression ratio: 9.0:1
Maximum rpm: 4800-5200 RPM
Engine rev limiter: 5400 RPM

Valve system:
Valve lift intake 0.510
Valve lift exhaust 0.530

Camshaft:
Duration at .050" cam lift: Intake 222 degrees and exhaust 230 degrees.

thank you! I ended up finding a core cam to be able to get one made to match the specs. I am getting two made so i have an extra if need be.

06-08-2021 | 05:45 PM

#12

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From: On A Dirt Floor

Quote:

Originally Posted by hypforlife32

thank you! I ended up finding a core cam to be able to get one made to match the specs. I am getting two made so i have an extra if need be.

What did you find out about the General Motors Performance Parts cams I linked ?

06-08-2021 | 06:01 PM

#13

hypforlife32

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Quote:

Originally Posted by SB

What did you find out about the General Motors Performance Parts cams I linked ?

it’s a super close cam but idk how the lsa would change with tuning or mess things up. It’s almost an indentical match. It would be way faster is thst would work