F303 cam with GT40 heads

ballajb · June 3rd, 2009, 03:57 PM

is there anyone else running this combo of gt40 heads with f303 cam? if so what length pushrods did you go with?

rodeheavers · June 3rd, 2009, 05:31 PM

you should be able to use stock length pushrods becuase an f-cam has the same base circle size and your stock cam..

White Thunder · June 3rd, 2009, 05:31 PM

what are your mods? keep the stocker cam and forget the alphabet cam

flattusmaximus78 · June 3rd, 2009, 06:22 PM

Stock pushrods and rockers worked on my car. I also have gt40p's and a fcam.

93mustank · June 3rd, 2009, 09:11 PM

Always measure.....Every motor is different.

1slo5.0 · June 3rd, 2009, 09:57 PM

Originally Posted by 93mustank

Always measure.....Every motor is different.

+1 +1 and +1 one more time.

Can't stress this enough whether it be valve to piston clearance or pushrod length. You just don't know if the heads have been milled or if anything else has been done that will affect the clearance.

rodeheavers · June 3rd, 2009, 10:01 PM

so if he has a stock cam in it and if the heads/block were milled or valve seats reground, then it would prob have different length pushrods or rocker shims to start with.. but yes it is best to check..+1

flattusmaximus78 · June 3rd, 2009, 10:33 PM

Originally Posted by rodeheavers

so if he has a stock cam in it and if the heads/block were milled or valve seats reground, then it would prob have different length push rods or rocker shims to start with.. but yes it is best to check..+1

lol... Kinda got a point there. But mustanks right. The combo you want has been done one trillion times... but oddly enough some people have different results.

PJC Racing · June 4th, 2009, 11:44 AM

Measure for correct length.

superbean · June 4th, 2009, 01:58 PM

Pull And Pray, Pull And Pray Brother

June 3rd, 2009, 03:57 PM	#1
ballajb Newbie Join Date: Oct 2008 Posts: 13 iTrader: 0 reviews	F303 cam with GT40 heads is there anyone else running this combo of gt40 heads with f303 cam? if so what length pushrods did you go with?

June 3rd, 2009, 05:31 PM	#2
rodeheavers Regular 1981 4 EYED FREAK 9.48@147 Join Date: Mar 2009 Location: southwestern pa Posts: 328 iTrader: 0 reviews	you should be able to use stock length pushrods becuase an f-cam has the same base circle size and your stock cam.. __________________ www.rodeheavershotrod.com 9.48@147 on pump gas through the mufflers, still has pw,tilt,t-tops,all lights, wipers!!!, check out the vid http://www.youtube.com/watch?v=SloE3Zdetac

June 3rd, 2009, 06:22 PM	#4
flattusmaximus78 I Post Entirely Way Too Much 1993 5.ohhhh 12.97 @140mph Join Date: Apr 2006 Location: Gatorland Posts: 6,122 iTrader: 3 reviews	Stock pushrods and rockers worked on my car. I also have gt40p's and a fcam. __________________ 02 Pewter z28, hoosiers/lid/exhaust/spray...125mph 1993 gt Sold, already missed --Moates Quarter horse $225-- --Cobra intake $150-- --tremec 3550 bell and shifter $1100--

June 3rd, 2009, 09:11 PM	#5
93mustank Banned Join Date: Aug 2008 Location: Phoenix,AZ Posts: 3,014 iTrader: 1 reviews	Always measure.....Every motor is different. __________________ PeteAndersonRacing.com

June 3rd, 2009, 10:01 PM	#7
rodeheavers Regular 1981 4 EYED FREAK 9.48@147 Join Date: Mar 2009 Location: southwestern pa Posts: 328 iTrader: 0 reviews	so if he has a stock cam in it and if the heads/block were milled or valve seats reground, then it would prob have different length pushrods or rocker shims to start with.. but yes it is best to check..+1 __________________ www.rodeheavershotrod.com 9.48@147 on pump gas through the mufflers, still has pw,tilt,t-tops,all lights, wipers!!!, check out the vid http://www.youtube.com/watch?v=SloE3Zdetac

June 4th, 2009, 11:44 AM	#9
PJC Racing Regular Join Date: Feb 2008 Location: Tampa, Fl Posts: 104 iTrader: 0 reviews	Measure for correct length. __________________ 89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works

June 4th, 2009, 01:58 PM	#10
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	Pull And Pray, Pull And Pray Brother __________________ weeee foooord!

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