Side by side image of 643 vs. 561 castings inside..
#48
A little off topic but i have a set of steel lt1 heads off a 94 caprice , I heard they flow a tad better than stockers , also have a set a edelbrocks untouched, intend on throwing the motor in a carburated 67 comaro, which heads to use with a mild (500) lift cam?
#49
The iron heads do flow a tad better (about 10%) but the larger combustion chambers means its gonna lower your CR even with some thinner Impalla head gaskets.
#50
Also, how could one tell how much extra hp could be had from porting ....
LT1 castings vs. LT4 vs. Trickflow vs. Edelbrock vs. AFR?
In order which are best and how far apart are they?
Could the LT4's be worth 10 more? Would the Trickflows potential be worth 20 more hp etc.. I don't seem to have ever been able to get an answer on that question, just recommendations. Just trying to learn and make the best decision.
Thanks
Last edited by rickreeves1; 01-25-2007 at 01:22 PM.
#52
Does any know?
Also, how could one tell how much extra hp could be had from porting ....
LT1 castings vs. LT4 vs. Trickflow vs. Edelbrock vs. AFR?
In order which are best and how far apart are they?
Could the LT4's be worth 10 more? Would the Trickflows potential be worth 20 more hp etc.. I don't seem to have ever been able to get an answer on that question, just recommendations. Just trying to learn and make the best decision.
Thanks
Also, how could one tell how much extra hp could be had from porting ....
LT1 castings vs. LT4 vs. Trickflow vs. Edelbrock vs. AFR?
In order which are best and how far apart are they?
Could the LT4's be worth 10 more? Would the Trickflows potential be worth 20 more hp etc.. I don't seem to have ever been able to get an answer on that question, just recommendations. Just trying to learn and make the best decision.
Thanks
I get that but what if it was same porter/quality and the same cam?? What would be the choice of heads for porting, in order, and approximately how much difference would each step up make if any?
Thanks
Last edited by rickreeves1; 01-25-2007 at 03:22 PM.
#55
#56
Does any know?
Also, how could one tell how much extra hp could be had from porting ....
LT1 castings vs. LT4 vs. Trickflow vs. Edelbrock vs. AFR?
In order which are best and how far apart are they?
Could the LT4's be worth 10 more? Would the Trickflows potential be worth 20 more hp etc.. I don't seem to have ever been able to get an answer on that question, just recommendations. Just trying to learn and make the best decision.
Thanks
Also, how could one tell how much extra hp could be had from porting ....
LT1 castings vs. LT4 vs. Trickflow vs. Edelbrock vs. AFR?
In order which are best and how far apart are they?
Could the LT4's be worth 10 more? Would the Trickflows potential be worth 20 more hp etc.. I don't seem to have ever been able to get an answer on that question, just recommendations. Just trying to learn and make the best decision.
Thanks
Paging Mr. Lloyd and StrokerAce?? Please see question in first quote above.
Thanks
ttt
#57
T/A LT1 (aka Later, Clint) on here is going from a LE ported TFS to a LE3 stock casting setup on his 355 and from what Lloyd told me on the phone yesterday it should walk all over the TFS castings on that motor.
On a stroker its a different game, a TFS head will work very well. But if you are going to do a stock or 355 cube motor then go with the stroker later on a LE3 head would work killer for you. Just change the cams when you change the cubes.
Bret
On a stroker its a different game, a TFS head will work very well. But if you are going to do a stock or 355 cube motor then go with the stroker later on a LE3 head would work killer for you. Just change the cams when you change the cubes.
Bret
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
10-31-2016 11:09 AM
kizz
Automotive News / Industry / Future Vehicle Discussion
31
09-04-2002 01:17 PM