Topic: Good set up for my vette
in Forum: C3 Engines
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Hi Everyone,
Just got my 1974 Vette about a month ago and would like to find a good engine set up. Currently, it has 350, 3speed automatic. It is pretty much bone stock. So, I a, thinkimg of modifying the upper block.
I am thingking of getting 650-750 cfm 4 barrels carburator, intake, lifters, rollers, cam, and gear drive, and possibly a side exhaust or full length headers.
Can you suggest any brands, ratio, or specs, that can improve the performance..
And any place to get good price
Thank you
Desert StormDesert Shield Veteran
Semper Fi
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Well, here's what mods have been done to mine:
Edelbrock 750 CFM Performer carb.
Edelbrock Performer RPM intake.
14X3 Air cleaner.
Comp Cams Magnum roller rockers 1.6 ratio.
Hedman 1 5/8 into 3 inch collector long tube HTC coated headers.
2.5 inch mandrel bent pipes with crossover.
Magnaflow mufflers.
High flow water pump
4 core rad.
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Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
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Lifetime MemberSummit Racing can supply you with just about anything you might want or need. Great people!
corvette440hp
Former Member
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New Albany, OH - USA
Joined: 8/17/2010
Posts: 173
Vette(s): 1980 Coupe /
Snowcrest White /
L48, 350 /
Comp Cam /
Edelbrock Heads /
Cyclone Intake /
Holley Carb /
Holley Fuel Pump /
Patriot Headers /
Dual Exhaust /
Magnaflow Mufflers /
1964 Coupe /
Riverside Red /
L76, 327, 365hp
I had the same questions a couple years agao and sent an email to VETTE Magazine. One of their editors, Dave Emanuel, set me up with the following modifications.
Comp Cam Hydraulic Roller
Lobe Lift: .3340 intake; .3420 exhaust
Lobe Separation: 112-degrees
Gross Valve Lift: .501 intake; .513 exhaust
Comp Cam Lifters
Comp
Comp
Comp
Comp
Comp
Comp
Comp Cam
Edelbrock E-Street Aluminum Cylinder Heads
2.02-inch intake / 1.60-inch exhaust Valves
64-cc Combustion Chambers
RPM Range: Idle – 5,500
Holley Street Avenger 770-cfm Carburetor
Holley 80 GPH Fuel Pump w/ 3/8-inch Fuel Line
Power+Plus Cyclone+Plus Dual Plane Intake Manifold
ECC Distributor Cap / Rotor
Patriot Ceramic-Coated Tight-Tuck Exhaust Headers
1 5/8-inch Primaries
2 ½-inch Collectors
2 ½-inch Aluminum Dual Exhaust
MAGNAFLOW 2 ½-inch Mufflers
14 x 3-inch Chrome Performance Air Cleaner
Chuck
ok I havent pulled the valve covers off my 75 Vette, but do our Vettes have "Roller" rockers stock????
Jason
1975 Corvette Coupe
My first Vette.....trying to fix stuff
My Project:
https://docs.google.com/folder/d/0B6uOAIjGf3cWejQ5TjNkcVRybGs/edit
ROCKRDR said: ok I havent pulled the valve covers off my 75 Vette, but do our Vettes have "Roller" rockers stock????
Jason
No, stamped steel.
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
Former Member
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Greer, SC - USA
Joined: 3/13/2012
Posts: 264
Vette(s): 1978 Black with Viking mural painted under hood AM/FM/CB radio, T-top and a 2013 Cyber Gray Grand Sport Coupe, 2LT for my daily driver
I swapped motors and went with a ZZ4 (I should have gone with the fast burn ZZ4) and even those have the stamped rocker arms (I was a bit suprised to discover that). Don't forget about the rest of your power train if you beef up the engine (torque converter especially). When I did the engine swap, I knew NOTHING about engines and had no one to talk to about it. If I had known more, I might have put a stroker in there, or at least the fast burn.
Breast (oops
....I mean BEST) of luck to you
....I mean BEST) of luck to youWarning: The surgeon general has declared that it is NOT unhealthy to smoke your competition AND I just discovered that my corvette is a hybred. It burns gas and rubber!
VikingVette said: I swapped motors and went with a ZZ4 (I should have gone with the fast burn ZZ4) and even those have the stamped rocker arms (I was a bit suprised to discover that). Don't forget about the rest of your power train if you beef up the engine (torque converter especially). When I did the engine swap, I knew NOTHING about engines and had no one to talk to about it. If I had known more, I might have put a stroker in there, or at least the fast burn.
Breast (oops....I mean BEST) of luck to you
....I mean BEST) of luck to youThat's the one I want as well...money is the issue. My L48 still runs very strong; just a bit of oil consumption but no other issues so hard to justify spending the money on a new motor. I want to do some supension/steering work before that.
Build Date: May 7, 1975. 383 w/267 RWHP/310 RWTQ
Thank for all suggestions. I spent quite a good time talking to Suumit Racing tech service. With the stock bottom block that I have, they are recommending 650 cfm Holley, comp cams, rollers, and lifters. Also recommending MSD 6201. Also, he told me dont change my intake and distributor if not broken. I called again after 30 minutes and talk to a different guy, suggesting to use, I believe, a new brand of carburator, Quick Silver, or something quick. I did ask him about changing my intake he recommended edelbock 2101 with spacer, but he said it might be tight on top unless I can find a skinny air filter. My question, and need your help, if i am changing my carburator, to 4 barrels, do I need to change my intake? Should I go higher than 650 cfm? If I will chnge my intake, which one, I can use without mods to my hood? Or better yet, which air cleaner is skinny enough, that i dont need to change my hood.
Thank you
Desert StormDesert Shield Veteran
Semper Fi
in Forum: C3 Engines
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