Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 400 sbc hp?
Thread: 400 sbc hp?
View Single Post
  #7 (permalink)  
Old 02-23-2013, 08:16 AM
vinniekq2's Avatar
vinniekq2 vinniekq2 is online now
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 8,000
Wiki Edits: 0

Thanks: 318
Thanked 776 Times in 743 Posts
horse power

Quote:
Originally Posted by jtz55 View Post
are u running headers or stock exhaust .I have and am currently running a similar setup 485 lift cam 5.7 rods .it is putting out alittle over 400 hp and 525 ft lbs very good street manors .have fun with your 400 they make tremendous off idle torque and will shred the belts off most street tires.
varified or estimated?

the 400 came with 265 hp plus or minus
using a decent upgrade in cam/manifold/carb/headers could net 50 plus hp
vortec heads are very good improvement over most heads,especially for moderate performance and low lift cams.
vortecs flow 230 plus CFM on the intake side
these heads would peak at 5500 rpm on a 400.the cam would need to be big enough to rev 5500 to take full advantage of these heads

may need exhaust port worlk
Reply With Quote