1.73 rockers and e303 will it work?

92Rustang · 07-17-2001, 07:26 PM

Is anyone running this combo on a stock bottom end? The 1.73 were the only ones I could find for my winsdor heads. Thanks for the help.

------------------
Check my site for mod
www.fordmustanggt.com

stangsrule · 07-18-2001, 02:23 AM

I ran that combo for a little while with no problems but the e-cam didn't have enough lobe seperation for my blower so I had to get rid of it... It sounded awsome though!!! Had more lope than most f cams I have heard...

------------------
92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc.

07-18-2001, 01:03 PM

Everyone I speak to tells me that w/ my E-cam, I need 1.6's not 1.7 or 1.72.......why is that? They tell me I won't be able to fit?

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

92Rustang · 07-18-2001, 04:25 PM

Will guys I tested it today. I put some clay on the piston, torqued down the head, adjusted the rockers, and I didn't touch the piston. I just hope I did this right, I didn't have oil in the lifters. I'm going to try again tomorrow better safe the sorry. Thanks for the help.

------------------
Check my site for mod
www.fordmustanggt.com

David Fulford · 07-18-2001, 04:25 PM

Because of possible piston to valve clearance problems. I have heard mixed opinions and don't know a definite answer. I have 1.6 and the E-cam and no problems. Good luck.

fastang · 07-18-2001, 05:08 PM

I have 1.7's with a B cam and milled heads and dont have any clearance problems.

89 Cobra LX · 07-19-2001, 08:00 AM

The B cam has less lift than the E cam. That's why most folks use the 1.7 RRs with the B.

07-19-2001, 01:12 PM

So I guess getting the 1.6 is the best/ safest thing for me to do! Thanks.

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

Skyman · 07-19-2001, 03:24 PM

Exgm is running 1.7s on a E-303 with TFS heads.

Skyler

------------------
-1989 Saleen Mustang #406-
TFS TW Heads, E-303, Edelbrock intake, 70mm TB, 73mm MAF, 24lb injectors, 1 5/8 shorties, Off Road H, 3 Chamber flows, Jaz Race seats, Back seat removed, sub-frames, Roll Cage, and a 80 shot of N20.
12.54@107.4 Motor
1.69 60'

07-19-2001, 04:24 PM

Skyman - and he didn't have any clearance/performance problems??

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

92Rustang · 07-19-2001, 04:27 PM

I tested it again today. I have about 1/8-1/16 of an inch clearance. I think I'm good,but now I don't understand why everyone is saying you can't run 1.7 with and E cam.
Oh well mine looks like it will work and with the 1.73 it should jack the lift up to around 530. Man this thing is going to sound sweet. Thanks everybody for you input.

07-19-2001, 07:45 PM

Rustang, let us know how it works out.......you're my guinea pig of sorts

!

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

exgmguy · 07-20-2001, 11:13 AM

No problem for me with the 1.72's and the E-cam. TFS heads say a maximum lift of .540 and the E cam with the 1.72's comes to about .538.

BTW, They don't make a 1.73 as far as I know.

------------------
1988 Mustang GT
11.8 @ 123 (7/14/01)
1992 BadAzz Wrangler
1993 Explorer

07-20-2001, 01:25 PM

Thanks exgmguy. I've got Edelbrock Performer Heads.....would 1.7's be ok for me too?

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

jimberg · 07-20-2001, 02:30 PM

TFS heads are designed to give you more lift without clearance problems. I'd say you were pushing it with Edelbrock heads. You can always do what 92Rustang did and buy the rockers and check piston to valve clearance.

------------------
351W 89 Mustang GT Convertible

Coupe Devil · 07-20-2001, 03:33 PM

Jimberg- doesnt the TWS heads have a more canted valve line. I always heard from my friend that has run both the Edelbrock Performer RPM's, and the TWS heads that the Edelbeock worked better. He says the inline valve set up on those works better the the TWS heads. I am going to run the Edelbrock's and 1.7 rockers when I can afford it.

------------------
'93 lx 4 banger, wrecked '90 lx 5.0, w/ t-5. .030 over fully ported and polihed (did that just to see if I could-first attempt at it). Motor and tranny in use for Ranger project.

Cocked, locked and ready to rock

Pony Power Forever

92Rustang · 07-20-2001, 04:51 PM

exgmguy, I have the harland sharp rockers they are 1.73. They your about the only choice of 1.7's I could get for 7//16 studs. Everybody else wanted three bills. Beside they invented the roller rocker.

------------------
Check my site for mod
www.fordmustanggt.com

jimberg · 07-20-2001, 07:00 PM

pony_power_90, Edelbrock heads do not give you the same piston to valve clearance that TFS TWs would. Part of the reason for putting the valves at an angle is to give you more room for lift. The other part is to position the spark plug better for combustion. My comment wasn't an argument as to which head design was better, it was just a warning that what you can get away with TFS TW heads you may not be able to do with Edelbrock heads - Namely 1.73 rockers with an E303 cam.

Your friend's experiences are great, but you would really need all the info about what he did. Things in an engine work as a whole, not as a single entity. If parts he had worked better with an Edelbrock it doesn't mean that they are better than TFS TWs.

------------------
351W 89 Mustang GT Convertible

stangsrule · 07-21-2001, 01:14 AM

For what it is worth, I ran the 1.7 RR's on a set of Edelbrock Performer heads on two differant stock blocks with no problems... Let us know what you decide and how it works out.

------------------
92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc.

Nutty 5.0 · 07-24-2001, 08:29 PM

I have run my 1.70's and E cam for a year and a half now. I clayed the pistons and had over 1/4". I have Edelbrock performer 5.0's (6037). Ran good before the blower, even better with!

The 1.73's are also the measurement of the Crane Gold's. I have seen them and doubted the 1.73. They are stamped right on them. Friend has them. Nice looking.

Anyway, I ran a best of 13.27 @ 106 on street tires before the blower. Very streetable and passed emissions easily.

------------------
See my car HERE
93 GT Red/Grey
S trim, Edelbrock 6037 heads, E cam, BBK longtubes w/cats, 3 chamber Flowmasters, Cobra intake, Kirban fuel regulator, BBK 70mm t.b., 75mm Pro-M meter, 1.7 roller rockers, Mac upper and lower strut tower braces, FMS lowering springs, Factory Five upper and lower control arms, Speedware Cobra R 17X9 wheels, 3.73 gears & more.
DYNO=435.6 hp/405.1 tq at rear wheels.

07-17-2001, 07:26 PM	#1
92Rustang Registered Member Join Date: Feb 1999 Location: Smithton, IL, US Posts: 215	1.73 rockers and e303 will it work? Is anyone running this combo on a stock bottom end? The 1.73 were the only ones I could find for my winsdor heads. Thanks for the help. ------------------ Check my site for mod www.fordmustanggt.com

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07-18-2001, 02:23 AM	#2
stangsrule Registered Member Join Date: May 1999 Location: Indiana Posts: 512	I ran that combo for a little while with no problems but the e-cam didn't have enough lobe seperation for my blower so I had to get rid of it... It sounded awsome though!!! Had more lope than most f cams I have heard... ------------------ 92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc.

07-18-2001, 01:03 PM	#3
bada$$lx Guest Posts: n/a	Everyone I speak to tells me that w/ my E-cam, I need 1.6's not 1.7 or 1.72.......why is that? They tell me I won't be able to fit? ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

07-18-2001, 04:25 PM	#4
92Rustang Registered Member Join Date: Feb 1999 Location: Smithton, IL, US Posts: 215	Will guys I tested it today. I put some clay on the piston, torqued down the head, adjusted the rockers, and I didn't touch the piston. I just hope I did this right, I didn't have oil in the lifters. I'm going to try again tomorrow better safe the sorry. Thanks for the help. ------------------ Check my site for mod www.fordmustanggt.com

07-18-2001, 04:25 PM	#5
David Fulford Registered Member Join Date: Oct 2000 Location: Charlotte NC Posts: 193	Because of possible piston to valve clearance problems. I have heard mixed opinions and don't know a definite answer. I have 1.6 and the E-cam and no problems. Good luck.

07-18-2001, 05:08 PM	#6
fastang Registered Member Join Date: Aug 2000 Location: santa ana ca Posts: 1,349	I have 1.7's with a B cam and milled heads and dont have any clearance problems.

07-19-2001, 08:00 AM	#7
89 Cobra LX Don Corlione Join Date: Jun 2001 Location: Omaha NE USA Posts: 491	The B cam has less lift than the E cam. That's why most folks use the 1.7 RRs with the B.

07-19-2001, 01:12 PM	#8
bada$$lx Guest Posts: n/a	So I guess getting the 1.6 is the best/ safest thing for me to do! Thanks. ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

07-19-2001, 03:24 PM	#9
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Exgm is running 1.7s on a E-303 with TFS heads. Skyler ------------------ -1989 Saleen Mustang #406- TFS TW Heads, E-303, Edelbrock intake, 70mm TB, 73mm MAF, 24lb injectors, 1 5/8 shorties, Off Road H, 3 Chamber flows, Jaz Race seats, Back seat removed, sub-frames, Roll Cage, and a 80 shot of N20. 12.54@107.4 Motor 1.69 60'

07-19-2001, 04:24 PM	#10
bada$$lx Guest Posts: n/a	Skyman - and he didn't have any clearance/performance problems?? ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

07-19-2001, 04:27 PM	#11
92Rustang Registered Member Join Date: Feb 1999 Location: Smithton, IL, US Posts: 215	I tested it again today. I have about 1/8-1/16 of an inch clearance. I think I'm good,but now I don't understand why everyone is saying you can't run 1.7 with and E cam. Oh well mine looks like it will work and with the 1.73 it should jack the lift up to around 530. Man this thing is going to sound sweet. Thanks everybody for you input.

07-19-2001, 07:45 PM	#12
bada$$lx Guest Posts: n/a	Rustang, let us know how it works out.......you're my guinea pig of sorts ! ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

07-20-2001, 11:13 AM	#13
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	No problem for me with the 1.72's and the E-cam. TFS heads say a maximum lift of .540 and the E cam with the 1.72's comes to about .538. BTW, They don't make a 1.73 as far as I know. ------------------ 1988 Mustang GT 11.8 @ 123 (7/14/01) 1992 BadAzz Wrangler 1993 Explorer

07-20-2001, 01:25 PM	#14
bada$$lx Guest Posts: n/a	Thanks exgmguy. I've got Edelbrock Performer Heads.....would 1.7's be ok for me too? ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

07-20-2001, 02:30 PM	#15
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	TFS heads are designed to give you more lift without clearance problems. I'd say you were pushing it with Edelbrock heads. You can always do what 92Rustang did and buy the rockers and check piston to valve clearance. ------------------ 351W 89 Mustang GT Convertible

07-20-2001, 03:33 PM	#16
Coupe Devil Moderator Join Date: Mar 2001 Location: Myrtle Beach SC Posts: 1,643	Jimberg- doesnt the TWS heads have a more canted valve line. I always heard from my friend that has run both the Edelbrock Performer RPM's, and the TWS heads that the Edelbeock worked better. He says the inline valve set up on those works better the the TWS heads. I am going to run the Edelbrock's and 1.7 rockers when I can afford it. ------------------ '93 lx 4 banger, wrecked '90 lx 5.0, w/ t-5. .030 over fully ported and polihed (did that just to see if I could-first attempt at it). Motor and tranny in use for Ranger project. Cocked, locked and ready to rock Pony Power Forever

07-20-2001, 04:51 PM	#17
92Rustang Registered Member Join Date: Feb 1999 Location: Smithton, IL, US Posts: 215	exgmguy, I have the harland sharp rockers they are 1.73. They your about the only choice of 1.7's I could get for 7//16 studs. Everybody else wanted three bills. Beside they invented the roller rocker. ------------------ Check my site for mod www.fordmustanggt.com

07-20-2001, 07:00 PM	#18
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	pony_power_90, Edelbrock heads do not give you the same piston to valve clearance that TFS TWs would. Part of the reason for putting the valves at an angle is to give you more room for lift. The other part is to position the spark plug better for combustion. My comment wasn't an argument as to which head design was better, it was just a warning that what you can get away with TFS TW heads you may not be able to do with Edelbrock heads - Namely 1.73 rockers with an E303 cam. Your friend's experiences are great, but you would really need all the info about what he did. Things in an engine work as a whole, not as a single entity. If parts he had worked better with an Edelbrock it doesn't mean that they are better than TFS TWs. ------------------ 351W 89 Mustang GT Convertible

07-21-2001, 01:14 AM	#19
stangsrule Registered Member Join Date: May 1999 Location: Indiana Posts: 512	For what it is worth, I ran the 1.7 RR's on a set of Edelbrock Performer heads on two differant stock blocks with no problems... Let us know what you decide and how it works out. ------------------ 92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc.

07-24-2001, 08:29 PM	#20
Nutty 5.0 Registered Member Join Date: Apr 2000 Location: Collegeville, Pa, USA Posts: 75	I have run my 1.70's and E cam for a year and a half now. I clayed the pistons and had over 1/4". I have Edelbrock performer 5.0's (6037). Ran good before the blower, even better with! The 1.73's are also the measurement of the Crane Gold's. I have seen them and doubted the 1.73. They are stamped right on them. Friend has them. Nice looking. Anyway, I ran a best of 13.27 @ 106 on street tires before the blower. Very streetable and passed emissions easily. ------------------ See my car HERE 93 GT Red/Grey S trim, Edelbrock 6037 heads, E cam, BBK longtubes w/cats, 3 chamber Flowmasters, Cobra intake, Kirban fuel regulator, BBK 70mm t.b., 75mm Pro-M meter, 1.7 roller rockers, Mac upper and lower strut tower braces, FMS lowering springs, Factory Five upper and lower control arms, Speedware Cobra R 17X9 wheels, 3.73 gears & more. DYNO=435.6 hp/405.1 tq at rear wheels.