62 Chevy II AF/X

[Deaf Bob]

Now Bob, next you'll be telling me the earth is flat. Lol.

It's not?....

[TheSilverBuick]

It's why my car weighs in like a few elephants are driving

I saw the trucker "public" scale was open in Lund last week when I drove by, I'm thinking of driving the Firebird out there to weight it in.

[STINEY]

Could be the muffler rusted away and you now have open pipes, Stiney?

Now Bob, next you'll be telling me the earth is flat. Lol.

[squirrel]

I don't need the cutouts, since I take it all off for racing (weight savings as well as lower restriction)

[milner351]

Stock replacement mufflers is a great idea if you want quiet, with cut outs in front of them for racing.

Truck mufflers were quite often "round body" larger diameter than a cherry bomb or other glass pack - but still not too hard to package, just longer than a typical car muffler or turbo muffler oval case affair.

My 91 truck has a Y pipe then a single round body muffler, unfortunately I think it's only 2.25"... a bit small for a 351.

[Deaf Bob]

Could be the muffler rusted away and you now have open pipes, Stiney?

[TheSilverBuick]

I knew it!!

[STINEY]

Climate change has changed the acoustic qualities of air to the point that whisper quiet exhaust is no longer possible.

Seriously.

Just the other day I started up a car of mine the has sat for 20 years.....it used to be whisper quiet, now it sounds like a derby car. Blat, blat.

Proof definitive.

[TheSilverBuick]

Can you actually get quiet quiet mufflers these days? I'm considering putting a cut out on the Firebird and silencing the engine exhaust completely. My first Firebird had all stock exhaust and it was whisper quiet going down the road.

[squirrel]

I'm thinking stock replacement mid 60s full size car mufflers.

[milner351]

Interesting - have you looked at any Jones exhaust? They have some nice looking stuff, haven't heard any mufflers in person though, they are made in U.S.A. They have a small case oval muffler that will work on my falcon, reasonably priced too. Cherry bombs as I recall (Mom says I have expensive ears) are cool, for about a week, then they just become too loud, sort of like flowmasters... except they are never cool! IMHO.

[squirrel]

I'm going to change my mufflers, if that's any indication!

[milner351]

Cool - glad you found it, every time I look at your car I smile. Very well done indeed.
I also wonder if I could live with cherry bombs in the falcon if I ran full tail pipes like you have... hmmmm.

[squirrel]

Big blocks have shorter intake pushrods. Since it has a retrofit roller cam, the lengths are not stock. The studs screw into the heads on all big blocks, too.

[milner351]

Great you found the cause, I was starting to wonder if the rocker studs were pulling out of the heads or ???
Are your pushrods custom length and different Int / Exh?