Tail_Gunner
Admiral
- Joined
- Jan 13, 2006
- Messages
- 6,237
Re: vortec headed 383
Hmmm......................
Seems to be working there...
But take a look at the whole build...
First i would do a forged rotating assy....that engine will have big torque
High lift somewhat strong cam
Beehive sprng's and keeper's apr studs..damm nice top end stuff there...capable of very high rev's whcih wont be used
Drop the tbi add the carb....Holley for the tweaker's..:lol:..750cfm
Eldobrok air gap
What is changing today is the abiltiy to build a very nice well balanced engine at the drop or a click of the mouse...parts that can be had cheap and tech that was not avabile when Moore wrote his book and new one would be fascinating. In the end a custom built engine of that depth...what 10,000 Walt..and one just bolts it together..:facepalm:
As to the tbi your at a power threshhold here very close if not beyond the tbi's abilty to build power...
http://www.thirdgen.org/techboard/tbi/254402-taking-your-tbi-setup.html
Third gen is where one goes to understand tbi and its limit's..Iam reasonalby sure that Gm intake will need it bore's drilled out to 2 inches to acoomdiate a 454 tbi...a 5.7 tbi will not produce enough cfm ofr such a build.
I'm familiar with both those marine cams. They're good and work well at low rpms. Hard pull all the way up to 5000. Of course it's helpful if the rest of the engine is built to actually use them. Sticking these in a stock engine ain't gonna help all you guys reading this stuff thinking "Hey that weird dude Walt likes that cam by golly I'm gonna order one and I'm gonna get my dang boat to actually get on plane with my 290 lb ol' lady sittin in the back by golly I won't need to counterweight her with 3 full beer coolers and the 4 kids"
View attachment 221294
Hmmm......................

Seems to be working there...
But take a look at the whole build...
First i would do a forged rotating assy....that engine will have big torque
High lift somewhat strong cam
Beehive sprng's and keeper's apr studs..damm nice top end stuff there...capable of very high rev's whcih wont be used
Drop the tbi add the carb....Holley for the tweaker's..:lol:..750cfm
Eldobrok air gap
What is changing today is the abiltiy to build a very nice well balanced engine at the drop or a click of the mouse...parts that can be had cheap and tech that was not avabile when Moore wrote his book and new one would be fascinating. In the end a custom built engine of that depth...what 10,000 Walt..and one just bolts it together..:facepalm:
As to the tbi your at a power threshhold here very close if not beyond the tbi's abilty to build power...
http://www.thirdgen.org/techboard/tbi/254402-taking-your-tbi-setup.html
Third gen is where one goes to understand tbi and its limit's..Iam reasonalby sure that Gm intake will need it bore's drilled out to 2 inches to acoomdiate a 454 tbi...a 5.7 tbi will not produce enough cfm ofr such a build.
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