SBC 400 Full Roller With NKB 274 Heads

1972 SBC 3951511 .040 over block 4 bolt main with new 400 steel crank std / std, H-beam 4340 5.7 rods, flat top piston, roller cam, roller rockers, comp cam pushrods, aluminum NKB-274 SH SWP heads 200cc runners / 64 cc chambers, king bearings, HV milling oil pump, air gap intake, Holley 750 HP, MSD 6 AL, billet MSD dist., double rolling timing chain, SFI flexplate, Speed Pro 8" harmonic balancer, Hooker comp headers, 38* WOT timing, 91 octane est. HP 480 / 480 ft lbs Torque. ARP head,rods and main bolts. I will be posting my L79 327 (331 ci ) 11:03.1 CR build / start up soon. If you like it, please hit the like and subscribe button, Thanks!

[@Dutch58]

What a beautiful sound!! Can hear that for hours. Regards, Ron. Munich/ Germany

[@ronniehenson4122]

Many thanks!

[@mikebuzzard2926]

Is the run stand factory made?

[@ronniehenson4122]

No sir, made out of junk I had laying the shop. I try to repurpose things the best I can to fit my needs.

[@antwionarnold18]

What type of piston do you have in your motor and what your compression

[@ronniehenson4122]

Flat top Hypertecnic 10:01comp

[@JOEDAPOPERAPGOD]

Did u run the springs it came wit

[@ronniehenson4122]

Yes

[@daverebholz3534]

What kind of power would that be making?

[@ronniehenson4122]

450 HP pump gas 91 octane

[@mattwicker4850]

What’s the cam specs on this 408? I’m building one very similar. Sounds great man!

[@ronniehenson4122]

280/287 duration, lift 487/490 and LS 108

[@mattwicker4850]

Ronnie Henson awesome. Thank ya sir