camshaft gains w/new stuff

84LX89GT · 10-03-2002, 11:52 PM

Alright i've got a question for everyone. It's likely i'm going to be buying a set of GT-40 heads off of a guy for an awesome price soon, and while i'm in the engine, i'm going to be gasket matching the heads to the intake and headers and replacing the lifters.
Just to give everyone an idea, i already have BBK fenderwell induction, 73mm MAF meter, 70mm Throttle body, trick flow street intake, 1.7 roller rockers, 1 5/8" headers w/2 1/2" exhaust. I think some GT-40 heads would match well with this combo in my opinion.

What i'm wondering is, how much hp i could get with the new heads if i put in a new camshaft at the same time. Also, what would you guys recommend, i may end up getting a custom grind but i can also have this cam place copy most grinds and give me an awesome price as well. What cams, if any would you recommend? Any ballpark HP increase numbers?

Your responses are always appreciated,
Thanks,
Rick

84LX89GT · 10-07-2002, 10:24 PM

well than, apparently not

fiveOguy20 · 06-28-2003, 01:19 PM

absolutly, u'll get alot more outa the heads with a bigger cam. with the P heads i'd go with either B or E cam or lunati makes a few that would be comparable. i'd guess 40-45hp with the cam an heads.

Coupe50h · 06-29-2003, 02:30 PM

just make sure you have good healthy valve springs on those heads, and you should see a nice gain

90GT398 · 06-29-2003, 11:16 PM

Since you have it apart already why not change the cam now, you have to ask yourself also if you have to worry about emission's.

If not then go for a cam with around 110 if you plan on staying natural aspirated, there are a number of good cam companies out there and also custom guys like Cam Motion, and Rick Anderson at AFM.

glenn95gt · 06-30-2003, 09:18 AM

If you don't mind me asking how much are you getting the heads for?
As far as the cam goes, do you plan on changing your combo in the future again? Like getting better heads? If so stay away from a custom, waste of money. Get one of the alphabet cams ford has, or I like the Stage 1 from TFS. Like previously said, make sure you have a good valve train.
You should see anywhere from 30-50 rwhp.

10-03-2002, 11:52 PM	#1
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	camshaft gains w/new stuff Alright i've got a question for everyone. It's likely i'm going to be buying a set of GT-40 heads off of a guy for an awesome price soon, and while i'm in the engine, i'm going to be gasket matching the heads to the intake and headers and replacing the lifters. Just to give everyone an idea, i already have BBK fenderwell induction, 73mm MAF meter, 70mm Throttle body, trick flow street intake, 1.7 roller rockers, 1 5/8" headers w/2 1/2" exhaust. I think some GT-40 heads would match well with this combo in my opinion. What i'm wondering is, how much hp i could get with the new heads if i put in a new camshaft at the same time. Also, what would you guys recommend, i may end up getting a custom grind but i can also have this cam place copy most grinds and give me an awesome price as well. What cams, if any would you recommend? Any ballpark HP increase numbers? Your responses are always appreciated, Thanks, Rick __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

10-07-2002, 10:24 PM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	well than, apparently not __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

06-29-2003, 02:30 PM	#4
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	just make sure you have good healthy valve springs on those heads, and you should see a nice gain __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

06-29-2003, 11:16 PM	#5
90GT398 Registered Member Join Date: Jun 2003 Location: USA Posts: 25	Since you already have it............. Since you have it apart already why not change the cam now, you have to ask yourself also if you have to worry about emission's. If not then go for a cam with around 110 if you plan on staying natural aspirated, there are a number of good cam companies out there and also custom guys like Cam Motion, and Rick Anderson at AFM.

06-30-2003, 09:18 AM	#6
glenn95gt Registered Member Join Date: Jun 2003 Location: Bay Area, Ca Posts: 86	If you don't mind me asking how much are you getting the heads for? As far as the cam goes, do you plan on changing your combo in the future again? Like getting better heads? If so stay away from a custom, waste of money. Get one of the alphabet cams ford has, or I like the Stage 1 from TFS. Like previously said, make sure you have a good valve train. You should see anywhere from 30-50 rwhp. __________________ StAnGaHoLiC!!! 1995 GT S-Trimmed 306, with H/C/I, and some other stuff. It just sounds fast. My Car

06-28-2003, 01:19 PM	#3
fiveOguy20 Registered Member Join Date: Sep 2002 Posts: 156	absolutly, u'll get alot more outa the heads with a bigger cam. with the P heads i'd go with either B or E cam or lunati makes a few that would be comparable. i'd guess 40-45hp with the cam an heads.

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