Projects /what's the Best Insulation ? ? ?

Can you guys advise an old first-timer (in 50 years - since the mid '60s) on insulating a street rod? I am about to lose-it trying to figure out what is the best HEAT and SOUND insulation(s) for my 55.2 Chevy Pickup. My modified '69 Z-28 power plant is almost completed. Next is designing a Console and the rest of the Interior including the insulation material(s).
Wish to have a cool (and kool) cab and a quiet one so I can hear my 50s-70s Rock and Country sounds.
I have read some comments where guys have used Lowe's Peel and Seal in their entire vehicles from the firewall and headliner to the rear of their cabs. A self-stick aluminum covering roofing insulation and water barrier. I am trying to get sound and heat repellent info from the manufacturer. Almost every comment was positive (about a 5 or 6 to 1 ratio).
What is your experience and recommendations? Dynamat and others are pretty pricey. Thank you. Murf

 

Lowes peel and seal is the way to go for the price at 16 a roll for us budget concience guys that the way to go

 

That's what I used and I'm a dd/only vehicle '49 Chevy 1/2 ton.

 

Works up the road a piece.

 

I used the Lowes Peel and Seal. Covered every square inch of the interior, floors, doors, cowl, 1/4 panels, trunk floor and sides, I mean everything. Been on there a year and a half. Works great in a rattley old model T. Bought a roll 3 feet x 33.33 ft for about $110. Had about a yard left over.
I think it is a very viable product in this application for a lot less money than dynamat. Hell, for the price of dynamat you could double layer the Peel and Stick.

 

peel n seal, and while youre at the hardware store pick up a roll of reflectix for the floor, firewall and roof, even more heat barrier

 

peal and seal and then the precut jute underlayment on top.
50's-70s country.......i would rather hear the engine.

 

My next one will get Lizard Skin and lobucrods stuff if he still sells it. I will put something like Peel and Seal on the floor, firewall and doors/quarters, but hopefully lobucrods product on the roof.

 

I've built three cars in the last 8 years...I've used Lizardskin in all of them and swear by it... Yes, it's a bit more expensive than other stuff, but I'm a firm believer in 'you get what you pay for.' I spray the inside and under the floor and do the inside of the roof as well. Nothing gets past it IF you read and follow the instructions...

R-