Anwsers needed for moding my 355...
Thread Starter
Burning Brakes
Joined: Nov 2003
Posts: 935
Likes: 2
From: Beverly, NJ
Anwsers needed for moding my 355...
Okay everyone. I wanted to build a 434 but that is just not possible in the near future. So I am just going to beef up my 355. Here are my plans. I will be installing a Vigilante 9.5 2800 stall converter in a few months. Then I want to install a mini-ram, and AFR 195cc competition ported heads. Also, I want to use 1.6 roller rockers. I need to select a good cam for it. I know nothing about cams, so I will need help on the selection. I would like a cam that idles a little bit rough, but passes emissions. Also, I don't want the car to idle anything over 800 RPMs. It will be a daily driver, so I don't want high idle or anything. I am planning to just leave the block as is. It is a pretty new block, with maybe 30k on it since its rebuild. What kind of compression am I looking at with the above mods? Is there anything else that I am leaving out that I need to update? After these mods, my next big mod will be to a D44. I was also thinking of a high volume oil pump, and a 7 qt race pan. What do you guys think? How much HP and 1/4 time you think I am looking at? Thanks.
Last edited by darkman5001; Jul 4, 2005 at 03:12 PM.
Le Mans Master
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Was wondering what year vette you have?
What heads are on it now?
What cam is in it now?
What valve springs are in it now?
What size valves are in it now?
What head gasket is in there now?
Emissions testing will be your biggest hurdle.
What octane gas will you be using?
You probably need a 112 LSA, a 110 will probably not give you enough vac to operate the brakes. I know a 110 I ran did not.
A cam with lift in the very high .500's should do you fine.
A head gasket with less compressed thickness than you have now will give a tad more compression.
How are getting EGR to work?
Not sure if the mini ram has EGR, but I think it is on the back of the intake there right?
Sorry for all the questions, I like to see the whole package
What heads are on it now?
What cam is in it now?
What valve springs are in it now?
What size valves are in it now?
What head gasket is in there now?
Emissions testing will be your biggest hurdle.
What octane gas will you be using?
You probably need a 112 LSA, a 110 will probably not give you enough vac to operate the brakes. I know a 110 I ran did not.
A cam with lift in the very high .500's should do you fine.
A head gasket with less compressed thickness than you have now will give a tad more compression.
How are getting EGR to work?
Not sure if the mini ram has EGR, but I think it is on the back of the intake there right?
Sorry for all the questions, I like to see the whole package
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
If you went roller, ZZ-409, but I see on their site that they make it for the 86 and earlier flat tappet as well.
Thread Starter
Burning Brakes
Joined: Nov 2003
Posts: 935
Likes: 2
From: Beverly, NJ
Originally Posted by 89 Paul in Cal
Was wondering what year vette you have?
What heads are on it now?
What cam is in it now?
What valve springs are in it now?
What size valves are in it now?
What head gasket is in there now?
Emissions testing will be your biggest hurdle.
What octane gas will you be using?
You probably need a 112 LSA, a 110 will probably not give you enough vac to operate the brakes. I know a 110 I ran did not.
A cam with lift in the very high .500's should do you fine.
A head gasket with less compressed thickness than you have now will give a tad more compression.
How are getting EGR to work?
Not sure if the mini ram has EGR, but I think it is on the back of the intake there right?
Sorry for all the questions, I like to see the whole package
What heads are on it now?
What cam is in it now?
What valve springs are in it now?
What size valves are in it now?
What head gasket is in there now?
Emissions testing will be your biggest hurdle.
What octane gas will you be using?
You probably need a 112 LSA, a 110 will probably not give you enough vac to operate the brakes. I know a 110 I ran did not.
A cam with lift in the very high .500's should do you fine.
A head gasket with less compressed thickness than you have now will give a tad more compression.
How are getting EGR to work?
Not sure if the mini ram has EGR, but I think it is on the back of the intake there right?
Sorry for all the questions, I like to see the whole package
Everything on my motor is stock. As for the miniram having EGR, I don't know. As for octane, I use 89 now, but if I had to go to 91, then that would be okay. I have an 86 Vette.
