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  1. #1
    New Member
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    Corvette(s)
    1974

    Default I want more Hp out of an 350 L48

    Im just an owner of a 350 corvettw -74 350 (L48 I guess)with 4 speed gearbox. Standard engine less than 200 horsepower, it is not good enough. My knowledge have to be improved about V8 engines. I want 375-400. I got when I bought the car some new parts: Cam Erson E110421 (296 IN 228 IN .472" IN 108. 0 .000" IN. 5750. Hi-Flow IH) Edelbrock intake, Edelbrock carb 650 Thunder AVS , and headers. Next step have to be something with the heads and comp I guess. What ? Can anybody give me some support?

    Thanks

  2. #2
    Moderator KANE's Avatar
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    Corvette(s)
    Dark Blue 1982 Trans Am(s): Polo Green 1995 MN6

    Default

    Quote Originally Posted by raceman View Post
    Im just an owner of a 350 corvettw -74 350 (L48 I guess)with 4 speed gearbox. Standard engine less than 200 horsepower, it is not good enough. My knowledge have to be improved about V8 engines. I want 375-400. I got when I bought the car some new parts: Cam Erson E110421 (296 IN 228 IN .472" IN 108. 0 .000" IN. 5750. Hi-Flow IH) Edelbrock intake, Edelbrock carb 650 Thunder AVS , and headers. Next step have to be something with the heads and comp I guess. What ? Can anybody give me some support?

    Thanks
    Jegs has a Blueprint engine for around 3k. Just drop it in and use your existing accessories. It is a 355 pushing 385hp. Sound like a what you want?

  3. #3
    Member Vettehead Mikey's Avatar
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    1973 Coupe

    Default

    The cam will give you the biggest boost, the headers a little bit if you run dual exhaust.

    The carb and intake will do nothing at all- the stock components are just as good.

    You're correct about heads and compression but dollar for dollar a comeplte crate engine is the best bet as Dark suggested.

    BTW- where are you located in Sweden?

  4. #4
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    Default

    Quote Originally Posted by Vettehead Mikey View Post
    The cam will give you the biggest boost, the headers a little bit if you run dual exhaust.

    The carb and intake will do nothing at all- the stock components are just as good.

    You're correct about heads and compression but dollar for dollar a comeplte crate engine is the best bet as Dark suggested.

    BTW- where are you located in Sweden?
    Thanks for your support but to buy an engine from US? its not exactly in the neighbourhood I have to think about that. I located in a small town not so far from Gothenburg

  5. #5
    Member Vettehead Mikey's Avatar
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    1973 Coupe

    Default

    I read up a little bit on your cam. Not the best choice for a street engine, especially with stock heads and compression.

    Not sure about shipping costs to Sweden or local machining capabilities, but I know there's lots of Corvettes and other GM products near you. Maybe some body local can help.

    I asked about your location as we have close friends who live in Aseda- not too far away!

  6. #6
    Member Vette79's Avatar
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    Corvette(s)
    1979 L-48 Black Coupe

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    Mikey, what is your recommendation on a cam?

    JEFF

  7. #7
    Member vetteKID's Avatar
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    Corvette(s)
    74 L-48 coupe & 85 454 coupe

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    summit racing sells two pairs heads for a good price. They just came out with a new street strip head I believe for 1000, but you can get most namebrand aftermarket heads for that price. I have the chevy remake fuelie heads by summit and have been very statisfied over the stock heads, They ran me $600 for the pair. www.summitracing.com They ship over seas for a 24$ handling fee + shipping.
    1974 4 speed L-48 coupe
    1985 454/700r4 coupe

  8. #8
    Member Vettehead Mikey's Avatar
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    Quote Originally Posted by Vette79 View Post
    Mikey, what is your recommendation on a cam?
    I hesitate to give any one-size-fits-all recommendations for individual components that are heavily dependant on many other components or systems in order to work properly. The cam in question seems to be mainly for track use (no bottom end power) and is intended for use with better than stock L48 heads and compression.

    I also rarely delve into aftermarket components as they are frequently no better than top shelf OEM stuff.

    Nothing wrong with an LT1 or L82 cam for street driven engine in my mind.

  9. #9
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    Corvette(s)
    Black '82 Coupe

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    ..... almost 6 months to-the-day old, but it still needs to be read:

    http://www.corvetteactioncenter.com/...011#post801011
    Cross-Fire No'-Mo' ~ 27,900-mile 1982 Coupe :
    OEM L-83 long-block with 650 Holley double-pump carb, dual-plane intake, 1.6:1 roller-rockers & 3.73 gears


    14-ohs @ 95+ MPH, best-of 13.935 @ 99.14

  10. #10
    Member Vette79's Avatar
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    Corvette(s)
    1979 L-48 Black Coupe

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    What are the specs for an L48 and L82 Cam?

    JEFF

  11. #11
    Member Koop's Avatar
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    Corvette(s)
    YELLOW 69 modified GM Crate ZZ383, LS2 TBSS

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    Most of people here have heard this from me.

    Directly from GM

    ZZ383

    or a

    ZZ4

  12. #12
    Member Truck Guy's Avatar
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    Bloomingdale, IL USA
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    Corvette(s)
    '73 Roadster

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    Quote Originally Posted by Koop View Post
    Most of people here have heard this from me.

    Directly from GM

    ZZ383

    or a

    ZZ4
    It's what I plan on doing. Not sure which one yet.

  13. #13
    Member red70vette's Avatar
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    Corvette(s)
    1970 red cpe 350/300

    Default

    Hey Vette Kid nice video. What color is your vette? From the lighting in that video it looks pink. I know that is not factory color unless it is a Mary Kay car. LOL

    Seriously what is the actula color?

  14. #14
    Member vetteKID's Avatar
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    Corvette(s)
    74 L-48 coupe & 85 454 coupe

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    Quote Originally Posted by red70vette View Post

    Seriously what is the actula color?

    Originally, Orange Metalic.... right now, shiney but faded orange metalic

  15. #15
    Member 6880 Mike's Avatar
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    1968 convertible; 1980 L-82

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    Quote Originally Posted by Vettehead Mikey View Post
    ...Nothing wrong with an LT1 or L82 cam for street driven engine in my mind....
    I agree. L-82 is hydraulic; LT-1 is solid. Both are readily available.


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