Phyte Posted November 24, 2003 Share Posted November 24, 2003 My pop's got a shop up in KS. He's building me a full LT1 with ZZ4 cam for either $632 without intake and carb, or $917 with a performer rpm intake and holley 750. This is a ready to drop in engine. He's firing it up on the test stand next weekend. My question is, should I try to score an LT1 intake and computer off ebay, or just go with the carb setup. I'd like to run F.I., but the costs would be a lot more. What would you do? With the ZZ4 cam the dyno numbers were 398hp@5000 rpm and 453lb/torque@3500. A CC306 cam netted 419hp@6000 rpm and but only 410lb/torque@4500 rpm. I'll take the 43lb's of tq over the 20hp anyday. Sure it doesn't rev as high, but thats ok with me. What to do. Phyte Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted November 24, 2003 Share Posted November 24, 2003 heres the zz4 cam http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1438 if your looking to make big hp that zz4 cam has far lower duration than ideal heres a chevy cam that produces better hp http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1848 if your willing to install a 383 rotating assembly with 11:1 compression this cam will make a much better power range http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1849 and yeah before you ask yeah youll need to install the correct valve springs, check and correct all clearances plus youll need to do the required tuning to the EFI or carb and a higher stall converter (3000rpm) is mandatory with the larger duration cam Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 24, 2003 Author Share Posted November 24, 2003 heres the zz4 camhttp://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1438 if your looking to make big hp that zz4 cam has far lower duration than ideal heres a chevy cam that produces better hp http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1848 if your willing to install a 383 rotating assembly with 11:1 compression this cam will make a much better power range http://www.sdpc2000.com/cart.asp?action=prod_detail&catid=989&pid=1849 and yeah before you ask yeah youll need to install the correct valve springs' date=' check and correct all clearances plus youll need to do the required tuning to the EFI or carb and a higher stall converter (3000rpm) is mandatory with the larger duration cam[/quote'] Grumpy, I appreciate the input. My dad has been professionally building chevy engines for 40 years. This engine was built out of parts he already had in stock including matching springs. The ZZ4 cam will have great streetability. My Z is going to be my daily driver, so thats important. With all the torque it will be making, it will be a killer car from 0-100. I just hope the r200 holds up! Phyte Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted November 24, 2003 Share Posted November 24, 2003 if its 90% dailly driver , yeah your correct that ZZ4 cam will be a good choice simply because its designed for a reasonable idle, mileage and low rpm torque, that makes it much better for daily transportation, luckly a (Z) is lite weight enough that even 330 hp makes it very competative with most performance cars Quote Link to comment Share on other sites More sharing options...
ToplessZ Posted November 24, 2003 Share Posted November 24, 2003 and if the 330 hp isnt quite enough you can always add spray thats one way to have power at your finger tips and not have to hurt any of your drivability. If you put some forged pistons in that combo im sure you will be able to spray it at 150hp shot for as long as you can afford to keep the bottle full. Sounds like its going to be nice regardless though. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted November 24, 2003 Share Posted November 24, 2003 I just hope the r200 holds up! The R200 will hold up fine, it's the shafts that you have to worry about. BTW, Grumpy does offer some good advice, I think he has made a few engines in his time too Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 24, 2003 Author Share Posted November 24, 2003 I just hope the r200 holds up! The R200 will hold up fine' date=' it's the shafts that you have to worry about. BTW, Grumpy does offer some good advice, I think he has made a few engines in his time too [/quote'] Oh I know all about grumpy. How can you not know him from lurking these forums. He's a one smart cookie He was recommending cams for high hp race engines. In my first post I said it will be my daily driver Phyte Quote Link to comment Share on other sites More sharing options...
drexel_j Posted November 27, 2003 Share Posted November 27, 2003 If this is a new LT1 and not a LT-1 from the seventy's how do you get a performer rpm intake to work on it? Quote Link to comment Share on other sites More sharing options...
ToplessZ Posted November 27, 2003 Share Posted November 27, 2003 Yes edelbrock makes a carb intake for everything these days including the new lt-1's and even the new ls1's in reference to the above post Quote Link to comment Share on other sites More sharing options...
Phyte Posted November 30, 2003 Author Share Posted November 30, 2003 If this is a new LT1 and not a LT-1 from the seventy's how do you get a performer rpm intake to work on it? Drill press + tap/die set = carbed LT1 This is the second carbed LT1 motor that my dad has built. The first one is in my moms 56 chevy. Phyte Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.