inline six beefy engine!

[datguy]

anyone hear know what to put on an inline 250 to make it sound like a good beefy engine. dont really care how much hp the engine puts out i just want it to have a good exhaust sound for now!

[TJ's Chevy]

Flowmaster mufflers are a good choice as well as magnaflow. You can go on youtube for help as well. Here are some videos of 6 bangers with flowmaster mufflers....

You Tube

You Tube

[TJ's Chevy]

Here's another with flowmaster mufflers.

You Tube

[NEWFISHER]

12bolt.com and watch the 250 wagon video. 2 /12 through a magnaflow. Same set up I'm running on the Burb, but no vid

[TJ's Chevy]

Originally Posted by NEWFISHER

12bolt.com and watch the 250 wagon video. 2 /12 through a magnaflow. Same set up I'm running on the Burb, but no vid

Here ya go......

You Tube

[theastronaut]

The guys in Brazil know how to make power with 250's! I'd do the Lump Port modification to the heads, a mild cam, and triple sidedraft Weber carbs.

Opala SS - Douglas Carbonera ON BOARD - YouTube

[TJ's Chevy]

Originally Posted by theastronaut

The guys in Brazil know how to make power with 250's! I'd do the Lump Port modification to the heads, a mild cam, and triple sidedraft Weber carbs.

Opala SS - Douglas Carbonera ON BOARD - YouTube

That's a 250!?!? NO WAY! I don't know how to read Brazil language. lol Boy he sure has that thing on some boost! lol!

[Sharps40]

TJ what headers is them ya got on yer truck and do they cool down faster than cast iron and do they blister the labels off the valve covers with the hood closed and runnin down the road?

[TJ's Chevy]

Originally Posted by Sharps40

TJ what headers is them ya got on yer truck and do they cool down faster than cast iron and do they blister the labels off the valve covers with the hood closed and runnin down the road?

They are short tube headers from clifford. Made from 16 gauge steel. They work fine. I've driven the truck about 5-6 miles and had no paint burn off. They get a little hotter then the stock exhaust manifold. Price will make ya cring though. I like the looks better then the cast iron ones from T Langdon.

[Sharps40]

I been lookin over long tube headers for torque. There used ta be tri y's for cmidrange but can't find em now

[gimmy 64]

summit or jegs has them. they are either headman or hooker. had them on a stock 68 chevy panel truck 250 with 4 barrel and intake . ran really good

[Sharps40]

Both have hooker and Holley/flowsumpthin and summit has a third brand. Polly get em inna fall an plumb em out one pipe

[TJ's Chevy]

Originally Posted by Sharps40

Both have hooker and Holley/flowsumpthin and summit has a third brand. Polly get em inna fall an plumb em out one pipe

I've heard lots a bad things about the headmen headers...one is they are cheap and don't last...I bought a set for my 292 and returned them because they looked like they were ready to fall apart. Plus they were made of cheap thin 24-26 gauge steel. My clifford short tube headers are 16 gauge steel and I paid $340 for them...spendy, but well worth the money. Clifford does make long tube headers as well. $439 for them. Spendy, but you'll have a great set of headers. Maybe next time I am in CA I can go to his place and pick up a set for ya. lol. Then you won't have to pay shipping. Tom Langdon's cast iron non-tube headers are probably yer best bet.

[jcramsey]

I had a set of the flow tech long tubes on my stock 250 running to a single flow master knock off and it had a nice rumble at idle. Sounded like a v8.

[datguy]

so long or short tube headrers? whats best? both performance and sound wise?

[1Bad62Pro/Street]

Here are some beefy I6's..
I think the chambered mufflers bring out the deepest sound.

250 chevy inline dyno testing - YouTube

GMC 302 - YouTube

MIGHTY 6: THE FASTEST 1936 PICKUP TURBO CHARGED...

Kirby Race Truck - YouTube

Hot Rod 292 six cylinder - YouTube

ANRA Famoso Oct.2010, Six Tee Pot. - YouTube

1936 Chevy Pickup running 8's!!! GIANT TURBO -...

MIGHTY 6: THE FASTEST 1936 PICKUP TURBO CHARGED...

[TJ's Chevy]

Originally Posted by datguy

so long or short tube headrers? whats best? both performance and sound wise?

I have heard that the long tube headers increase torque a little more, but the difference you gain is not ALL to much that much...with long or short tube headers you gain a maximum of 25 hp and a maximum of 15 torque...short tube headers are cheaper and easier to install if you get the better quality ones.

[Sharps40]

Originally Posted by T.J. MCCAULEY

I have heard that the long tube headers increase torque a little more, but the difference you gain is not ALL to much that much...with long or short tube headers you gain a maximum of 25 hp and a maximum of 15 torque...short tube headers are cheaper and easier to install if you get the better quality ones.

No one is making tri-y for inline sixes any more....Clifford used to and several mfgrs thru jc whitney in the old days. But I keep coming back to Langdons cast iron headers with the heat coating......I can y pipe at the right spot and get a similar impact....just gotta figure where. I think not more than about 3 feet back....somewhere near the cab front I think.

But don't knock it.....up to 25 horse on a 155 horse engine is a huge percentage.....I'd spect that's only with cam and intake mods though. 10 or so horses is prolly more realistic. Good news is if you want the absolute best idle and daily driveability nothing beats the stock inline 6 cams that are already in the engine....every other cam moves torque and power further up the rpm range where you be using it less and less often unless yer on the drag strip. I'll be keeping my stock cam and the goal is to make the power and torque in the useable band from 1500 to 3500 rpm.

[NEWFISHER]

Originally Posted by Sharps40

No one is making tri-y for inline sixes any more....Clifford used to and several mfgrs thru jc whitney in the old days. But I keep coming back to Langdons cast iron headers with the heat coating......I can y pipe at the right spot and get a similar impact....just gotta figure where. I think not more than about 3 feet back....somewhere near the cab front I think.

But don't knock it.....up to 25 horse on a 155 horse engine is a huge percentage.....I'd spect that's only with cam and intake mods though. 10 or so horses is prolly more realistic. Good news is if you want the absolute best idle and daily driveability nothing beats the stock inline 6 cams that are already in the engine....every other cam moves torque and power further up the rpm range where you be using it less and less often unless yer on the drag strip. I'll be keeping my stock cam and the goal is to make the power and torque in the useable band from 1500 to 3500 rpm.

My Langdon's come together with a 2 1/2 "Y" at 20" behind each collector and continue 2 1/2 through a Magnaflow 2 1/2 chambered and 2 1/2 out .

[Sharps40]

Originally Posted by NEWFISHER

My Langdon's come together with a 2 1/2 "Y" at 20" behind each collector and continue 2 1/2 through a Magnaflow 2 1/2 chambered and 2 1/2 out .

Pics? Sounds like what I want.

[TJ's Chevy]

Originally Posted by Sharps40

No one is making tri-y for inline sixes any more....Clifford used to and several mfgrs thru jc whitney in the old days. But I keep coming back to Langdons cast iron headers with the heat coating......I can y pipe at the right spot and get a similar impact....just gotta figure where. I think not more than about 3 feet back....somewhere near the cab front I think.

But don't knock it.....up to 25 horse on a 155 horse engine is a huge percentage.....I'd spect that's only with cam and intake mods though. 10 or so horses is prolly more realistic. Good news is if you want the absolute best idle and daily driveability nothing beats the stock inline 6 cams that are already in the engine....every other cam moves torque and power further up the rpm range where you be using it less and less often unless yer on the drag strip. I'll be keeping my stock cam and the goal is to make the power and torque in the useable band from 1500 to 3500 rpm.

I was told by several guys that when you add headers and a 4 barrel carb you can get a hp increase of Up to 20-25 hp...the torque...Maybe 10-15 foot pounds....that's why you don't feel a major increase in power...it takes torque to move an automobile...the stock torque rang on a 6 is 1000-2300 rpm..almost like a cummins. When I installed the big edelbrock and headers on my 292 something changed the torque curve, cause now it has torque from off idle-just about 3000 rpm. The cam I am going to use is .518 lift and peaks torque at 3300 rpm...now if I installed a richmond 6 speed then I wouldn't need to rev the motor to 4000 rpm between shifts like I do with the ol 4 speed. But I am going to completely hotrod the engine....It'll be making 330+ torque when done. The stock cam provides .401 lift and 188 duration @.50. I want something that will cruise, but will also take on a 350...and if built right they will do both.

[Sharps40]

Originally Posted by T.J. MCCAULEY

I was told by several guys that when you add headers and a 4 barrel carb you can get a hp increase of Up to 20-25 hp...the torque...Maybe 10-15 foot pounds....that's why you don't feel a major increase in power...it takes torque to move an automobile...the stock torque rang on a 6 is 1000-2300 rpm..almost like a cummins. When I installed the big edelbrock and headers on my 292 something changed the torque curve, cause now it has torque from off idle-just about 3000 rpm. The cam I am going to use is .518 lift and peaks torque at 3300 rpm...now if I installed a richmond 6 speed then I wouldn't need to rev the motor to 4000 rpm between shifts like I do with the ol 4 speed. But I am going to completely hotrod the engine....It'll be making 330+ torque when done. The stock cam provides .401 lift and 188 duration @.50. I want something that will cruise, but will also take on a 350...and if built right they will do both.

Yep. I thinglk were agreein-headers and carbs help but needs more guts to max out the flow benefits.

[datguy]

Originally Posted by T.J. MCCAULEY

I was told by several guys that when you add headers and a 4 barrel carb you can get a hp increase of Up to 20-25 hp...the torque...Maybe 10-15 foot pounds....that's why you don't feel a major increase in power...it takes torque to move an automobile...the stock torque rang on a 6 is 1000-2300 rpm..almost like a cummins. When I installed the big edelbrock and headers on my 292 something changed the torque curve, cause now it has torque from off idle-just about 3000 rpm. The cam I am going to use is .518 lift and peaks torque at 3300 rpm...now if I installed a richmond 6 speed then I wouldn't need to rev the motor to 4000 rpm between shifts like I do with the ol 4 speed. But I am going to completely hotrod the engine....It'll be making 330+ torque when done. The stock cam provides .401 lift and 188 duration @.50. I want something that will cruise, but will also take on a 350...and if built right they will do both.

exactly what i want to do, have a cruising engine that will take on a 350? any special list of parts to have my engine to these specs?

[TJ's Chevy]

Here are some more mean sounding 6 cylinders....

You Tube

You Tube

You Tube

[Sharps40]

Originally Posted by datguy

so long or short tube headrers? whats best? both performance and sound wise?

Short tube for higher rpm. Long tube if you intend to drive it as that makes the power in the driving rpm range...i.e. lower, tri-y for the mid range.