Exhaust Manifold - no problem bolting this stock exhaust manifold up to the new 243 heads?

 

Anyone else who has done this swap please comment - what about bolting the accessory brackets up? Will this be a problem?

 

Everything will fit no problem..

IF you plan on boost, you should check out the Isky Triple 12. makes good low end and comes alive with boost.

 

I've done the 243 head swap. Changed lifters and trays, went with hardened push rods since I changed cam. Milled .030 and used a .040 head gasket to give me 9.9:1 compression. Everything bolts back up fine. If you use the stock .051 thickness gasket, you'll see the stock 9.5:1 compression or extremely close to it.

I also went ARP bolts. You can go with stock replacements, I just find it a pain in the *** to torque them + so many degrees. 3 passes with ARPs in increasing increments of torque up to 80ft/lbs, and done.

 

I'm also looking at head choices. Did you have to do a tune with 9.9:1 compression, and what lifters and push rods did you use. Thanks