What Can I Expect?

What Can I Expect? - 02/04/09 10:07 PM

This winter the changes were going from a 360 to a 408.Everythng else is the same
360 combo.KB107 pistons +.009 out of hole .030 over,stock rods balanced,stock crank,974 heads ported with 2.02's or stock Eddys car ran the same

Scott Brown 240/252H cam with 530/540 lift,Air Gap intake and 750hp carb and TTI headers.Ran 11.53 @ 116 with 1.52 60'
408 scat package KB744 pistons,forged rods & crank
"0" deck,Crane cam 258/268 @ .050 560/580 lift 103 ATDC,Eddy heads but reworked,cleaned up around guides and pinch area,same intake/carb & headers.
Running through a 999/904 trans low gear set with 4000 stall TCS converter with 4.30 gear and 29x9 Hoosiers.
What ET/MPH will this give me?
Thanks

Posted By: 77DragracerR/T

Re: What Can I Expect? - 02/06/09 01:54 PM

Someone out there must have gone from a 360 to a 408.Just looking to see what gains someone found?

Posted By: formula S

Re: What Can I Expect? - 02/06/09 02:38 PM

Quote:

This winter the changes were going from a 360 to a 408.Everythng else is the same
360 combo.KB107 pistons +.009 out of hole .030 over,stock rods balanced,stock crank,974 heads ported with 2.02's or stock Eddys car ran the same
Scott Brown 240/252H cam with 530/540 lift,Air Gap intake and 750hp carb and TTI headers.Ran 11.53 @ 116 with 1.52 60'
408 scat package KB744 pistons,forged rods & crank
"0" deck,Crane cam 258/268 @ .050 560/580 lift 103 ATDC,Eddy heads but reworked,cleaned up around guides and pinch area,same intake/carb & headers.
Running through a 999/904 trans low gear set with 4000 stall TCS converter with 4.30 gear and 29x9 Hoosiers.
What ET/MPH will this give me?
Thanks

Need more info,compression ratio, head flo#. Is the cam a roller or flat tappet

Posted By: 77DragracerR/T

Re: What Can I Expect? - 02/06/09 02:43 PM

Compression works out to 11.8 and that's a flat tappet cam.Sorry no flow #'s for heads.Rockers are 1.5 crane iron/ductile and K-motion dual springs.

Posted By: Quicktree

Re: What Can I Expect? - 02/06/09 02:45 PM

just from the cubic inch gain you should see a few .10s and a few mph gain.

Posted By: S/ST 3040

Re: What Can I Expect? - 02/06/09 04:10 PM

Tens should be no problem with the stroke, cylinder head and
cam upgrades, based on your previous best.

It's hard to give accurate "What will it run?" numbers because
there are so many things that can't be accounted for.