round ports headers into ls7?
09-03-2018, 08:30 AM
#2
Your typing skills need help and tech has word correction/ spell checker ......... I just don't get it.
You mean 1 and 5/8 and 1 and 7/8 inch diameter exhaust. Use the 1 and 7/8ths as if upgrades are done you'll want a larger diameter exhaust pipe.
You mean 1 and 5/8 and 1 and 7/8 inch diameter exhaust. Use the 1 and 7/8ths as if upgrades are done you'll want a larger diameter exhaust pipe.
10-21-2018, 07:54 PM
#4
TECH Senior Member
OP hasn't been back, and with his extensive linguistic skills I doubt he knows how...
10-22-2018, 02:45 AM
#5
10-22-2018, 12:00 PM
#6
TECH Senior Member
Trending Topics
10-25-2018, 10:33 AM
#8
TECH Senior Member
10-31-2018, 07:48 AM
#9
TECH Enthusiast
The 1 3/4 are good for a stock LS7 engine when you get to a little more power the 1 7/8 come into play. Fitment wise the LS7 port really likes the 1 7/8 and you have some leeway. The 1 3/4 round port is tight and the header needs to be dead on or the tube will actually block the port a tiny bit (if this is a true round 1 3/4 tube). I think the LS7 port is like 1.65 or 1.68 inches wide (1 3/4 OD tube is like 1.65 ID). Some of the round tube headers that are 1 3/4 are sized up (for about a 1/4 inch) a little before going to 1 3/4 tube as they exit the head to account for this.
10-31-2018, 04:33 PM
#10
10-31-2018, 04:43 PM
#11
TECH Senior Member
11-02-2018, 12:07 PM
#12
The 1 3/4 are good for a stock LS7 engine when you get to a little more power the 1 7/8 come into play. Fitment wise the LS7 port really likes the 1 7/8 and you have some leeway. The 1 3/4 round port is tight and the header needs to be dead on or the tube will actually block the port a tiny bit (if this is a true round 1 3/4 tube). I think the LS7 port is like 1.65 or 1.68 inches wide (1 3/4 OD tube is like 1.65 ID). Some of the round tube headers that are 1 3/4 are sized up (for about a 1/4 inch) a little before going to 1 3/4 tube as they exit the head to account for this.
