New project 2WD 1 Ton 454

Gen 5 BBC kinda suck, head flow, cam spec and 8:1 CR are biggest hurdles.
towards the engine model split some gen5 had OEM HR cams in 95/96 years.

If you can score a set of gen 6 BBC heads 96-01 (casting # 10141279) they flow better and also bump compression from ~8:1 to 9:1. I've had good results putting Manley proflow valves and springs that can handle .600 lift. Heads will support ~425-450hp and around 500-550tq with proflow valves after that you're porting and ROI gets small fast.
The heads choke out around 4500-5000rpm

If you like to swap it to HR cam the GM #24502611 211/230° at .050 510/540" cam works very well at towing and DDing.
Staying flat tappet
Summit 1300 is a 208/218° at .050 470/500 lift
Summit 1301 is a 218/228° at .050 501/502 lift

some headers and 3" exhaust.
just put a magnaflow 12594 muffler on my 01 2500 suburban dual 3" single 4" used 4" tail pipe kit for 01-10 GM diesel pickups

I think GenVI heads on a GenV block need a special head gasket. GenV was kinda screwy, GenVI was compatible with the old school MarkIV stuff though.
 
Much Thanks for all the Intel. My forte was Mopar then Pontiac, SBC and SBF. High school days, I was the carb guy. Anybody that was anybody was on my driveway at one point or another. If it had a 4 barrel that needed to roar, it was at my house.

Yet, Not a lot of time in the saddle with BBC.
 
He is not a member here but here is a picture of the headers and a intake he has for sale if interested. Unfortunately he doesn't know much about them. Let me know if you have any interest
 

Attachments

  • IMG_1007.jpg
    IMG_1007.jpg
    40.9 KB · Views: 42
  • IMG_1008.jpg
    IMG_1008.jpg
    30.1 KB · Views: 38
  • IMG_1010.jpg
    IMG_1010.jpg
    27.4 KB · Views: 44
  • IMG_1011.jpg
    IMG_1011.jpg
    28.4 KB · Views: 43
  • IMG_1012.jpg
    IMG_1012.jpg
    37.5 KB · Views: 45
I think GenVI heads on a GenV block need a special head gasket. GenV was kinda screwy, GenVI was compatible with the old school MarkIV stuff though.
As. Long as you Run block specific head gaskets you're good it allows for interchange of heads.
I've got gen 6 heads on gen 4 blocks and gen 4 heads on gen 6 blocks currently
 
  • Useful
Reactions: Sweet_Johnny
As. Long as you Run block specific head gaskets you're good it allows for interchange of heads.
I've got gen 6 heads on gen 4 blocks and gen 4 heads on gen 6 blocks currently

Right, but from what I think I understand GenV is a b*st*rd child.
 

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor