Heads Experts Please!!!!!
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Heads Experts Please!!!!!
Guys I ordered a set of AFR 190 heads and got the 68cc. I later found out the stock l98 heads are 58cc. Will this decrease performance any if they are not 58cc. PLease advise so I can change the order. Thank a million. I also have a question in to Craig who helped me get a great deal on these. Thanks again.
Drifting
Joined: Aug 2001
Posts: 1,979
Likes: 0
From: Portage Mi
Re: Heads Experts Please!!!!! (ski_dwn_it)
If all you are doing is swapping heads, it will decrease your compression ratio,
and also hurt your performance. If you're doing a complete rebuild, you can get
pistons that will compensate for the difference.
and also hurt your performance. If you're doing a complete rebuild, you can get
pistons that will compensate for the difference.
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: Heads Experts Please!!!!! (95CYC4)
Fudge,
I knew I was right when talking with that guy, but I left my info at my other house and I swore it was 58cc but I let him talk me into it. Well I am sure that I can have it changed since he is only calling the order in tomorrow. Thanks for the information. I wonder how much this would hurt the performance. Or could I get a thinner head gasket? I will have them milled by AFR but just wondering. It would be nice to be able to leave them as is in the event I wanted to go crazy with a blower.....hmmmmm now you have me thinking.....no that is all I am planning this winter.....I have to get married this summer....by the way all are invited.....just kidding...I wish I could ....hell if your in the area...stop by...only requirement is bring your vette!! Thanks guys.
I knew I was right when talking with that guy, but I left my info at my other house and I swore it was 58cc but I let him talk me into it. Well I am sure that I can have it changed since he is only calling the order in tomorrow. Thanks for the information. I wonder how much this would hurt the performance. Or could I get a thinner head gasket? I will have them milled by AFR but just wondering. It would be nice to be able to leave them as is in the event I wanted to go crazy with a blower.....hmmmmm now you have me thinking.....no that is all I am planning this winter.....I have to get married this summer....by the way all are invited.....just kidding...I wish I could ....hell if your in the area...stop by...only requirement is bring your vette!! Thanks guys.
Racer
Joined: Apr 2001
Posts: 322
Likes: 0
From: Sherburne,NY NewYork
Re: Heads Experts Please!!!!! (ski_dwn_it)
If I am not mistaken TPiS angle mills their version of the AFR 190 heads to achieve a compression ratio/chamber volume that the customer requests. Chris at TPiS suggests about 54cc chambers with the stock pistons for a small but noticable increase in compression/power.
Vette Punk :conehead
Vette Punk :conehead
