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What Can I Expect? #214188 02/04/09 06:07 PM 02/04/09 06:07 PM
Joined: Apr 2003 Posts: 1,613 Burlington,Ont. 77DragracerR/T OP top fuel
77DragracerR/T OP top fuel Joined: Apr 2003 Posts: 1,613 Burlington,Ont.	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 5000982-GrandBend1.jpg (85 downloads) 77 Aspen R/T 60'@1.41 10.76 @ 123.26 http://www.youtube.com/watch?v=Eya3Ue8KoZk

Re: What Can I Expect? [Re: 77DragracerR/T] #214189 02/06/09 09:54 AM 02/06/09 09:54 AM
Joined: Apr 2003 Posts: 1,613 Burlington,Ont. 77DragracerR/T OP top fuel
77DragracerR/T OP top fuel Joined: Apr 2003 Posts: 1,613 Burlington,Ont.	Someone out there must have gone from a 360 to a 408.Just looking to see what gains someone found? 77 Aspen R/T 60'@1.41 10.76 @ 123.26 http://www.youtube.com/watch?v=Eya3Ue8KoZk

Re: What Can I Expect? [Re: 77DragracerR/T] #214190 02/06/09 10:38 AM 02/06/09 10:38 AM
Joined: Nov 2008 Posts: 660 San Diego formula S mopar
formula S mopar Joined: Nov 2008 Posts: 660 San Diego	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

Re: What Can I Expect? [Re: formula S] #214191 02/06/09 10:43 AM 02/06/09 10:43 AM
Joined: Apr 2003 Posts: 1,613 Burlington,Ont. 77DragracerR/T OP top fuel
77DragracerR/T OP top fuel Joined: Apr 2003 Posts: 1,613 Burlington,Ont.	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. 77 Aspen R/T 60'@1.41 10.76 @ 123.26 http://www.youtube.com/watch?v=Eya3Ue8KoZk

Re: What Can I Expect? [Re: 77DragracerR/T] #214192 02/06/09 10:45 AM 02/06/09 10:45 AM
Joined: Jan 2003 Posts: 32,394 Q Quicktree I Win
Quicktree I Win Q Joined: Jan 2003 Posts: 32,394	just from the cubic inch gain you should see a few .10s and a few mph gain.

Re: What Can I Expect? [Re: 77DragracerR/T] #214193 02/06/09 12:10 PM 02/06/09 12:10 PM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	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.

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