Originally Posted by Snowman34 (Post 8665263)

Our son and I are working on a '72 C10 Fleetside that we've completely redone virtually all of the front end on, Wilwood disc brake conversion, RideTech StreetGrip install, and new steering set-up incl. a new Borgeson steering box. Next up will be a new exhaust system once we get a few wiring items straightened out.

Our present set up is a 1st gen 350 w/TH350. Has a carb w/headers. Exhaust comes out directly in front of the rear wheels. Gas tank has been relocated to the rear. Previous owners put Cherry Bomb Extreme's on. The drone is excessive and wears on us after 10 minutes or so.

Our eventual goal is a daily driver. An exhaust system is next up for us. Just found the Blackheart system and we're very interested & looks like this could very well be a potential option for us. Since we have a 1st gen SBC w/headers, we are uncertain if this set up would be compatible with what we have. We are interested in the Borla S-Type exhaust as well, due to presumably having "no drone". We'd prefer to have the exhaust come out the back, but be nearly hidden, perhaps just seeing the tips below the rear bumper.

Do these mufflers have any drone?
How do they compare to the Borla S-Type?
Are you able to purchase this system, if it could work with our 1st gen set-up, without the mufflers that come with it?

Two pics included which are from when we originally purchased the truck in October.

Appreciate any input you all might have!
Ryan D.
Orlando, FL

Originally Posted by Trucknut57 (Post 8674886)

Toddoky,

Can you give me a few details on which engine, accessory setup, headers you guys used for the test mule?

Or did I miss it somewhere in this thread?

Thanks.

Originally Posted by Trucknut57 (Post 8674886)

Toddoky,

Can you give me a few details on which engine, accessory setup, headers you guys used for the test mule?

Or did I miss it somewhere in this thread?

Thanks.

Originally Posted by derotoreut (Post 8676479)

Are you able to explain to me why this system, or others might not require the use of flexible exhaust joints (i.e. short braided stainless couplings) at or near the headers? Systems with "X" or "H" pipes seem awfully rigid to me. It appears that they might benefit from using some type of flexible couplings. Curious to know. Thanks.

Originally Posted by toddoky (Post 8676569)

Exhaust bellows are typical only used on hot-end exhaust assemblies where necessary to allow for material expansion between two rigid components located in close proximity to each other (i.e. the exhaust manifold to turbo connections on the back of the Duramax Diesel engines), or to provide a means to deal with the slight mis-alignment of components that is expected to exceed a specific production tolerance. Exhaust system H and Y pipes themselves don't present either of these issues (especially ones used in systems without catalytic converters) and therefore don't require the use of bellows, as long as the fixtures for the components are designed correctly and their manufacturing is carried out as intended.

Originally Posted by derotoreut (Post 8676618)

So I'm assuming any flex generated in the system by engine torque is insignificant in this application. And without catalytic converters there is no concern of excessive heat that may cause thermal expansion issues. Thank you for taking the time to explain this.

Originally Posted by 72MARIO (Post 8663629)

Ahhh I hope my ctsv pan will clear the front crossmember and center link. Should have my parts next week.

Originally Posted by PGSigns (Post 8711406)

So how did the fit up go on the 64 you had in the lab in January? Have you been able to see what parts of the 67 to 72 stuff will cross over?
Jimmy

Originally Posted by PGSigns (Post 8713014)

Is there a time frame for this? Getting close to time to start on the 65.
Jimmy

Originally Posted by 70inbville (Post 8723556)

Hello, do you make a downpipe to go from Hooker ls cast manifolds to the blackheart exhaust system? I have been all over the website and summit but can't find one. found several for cars but not 70 c10. Also how is the clearance for shifter linkage with the headers. the pics above don't show a steering column and linkage. thanks

Originally Posted by clay68c10 (Post 8685906)

Did your V pan end up clearing? I’m thinking of going this route.

Originally Posted by 72MARIO (Post 8736884)

I just got the mounts installed. The CTSV pan does clear. The bottom of the pan is flush with the crossmember. The holley mounts dropped the engine just over 1" compared to my dirty ding sliders. The stock fan shroud fits with 1.5 removed from the circle. I am using the stock 6.0.cooling fan.