[dash_cam]

When I rebuilt the engine in my mustang back in the day, I took the specs of the Edelbrock performer cam to a custom shop and had the guy grind a can to those specs. I had it in a couple days, I think? I paid something stupid like $40 for it compared to whatever Edelbrock wanted. I think that counts as getting a custom ground cam and it was cheap.

 

[Kingfish999]

ive given up with CompCams recommendation page. last 3 recommendations ive sent it i never heard back from. im not sure how much CompCams wants for there custom grinds. most roller cams are around almost 300$. you can get custom ground cams for all sorts of prices. i know on one of the mustang forums, alot of people talked about custom grind cams from Ed at FlowTechInduction and there not much more.
Custom Camshafts - Ford - Small Block Windsor - FlowTech Induction

yes you can get 1.7 or probably even 1.72 pedestal mount rockers. they do add a bit of durration along with the lift. they open and close quicker meaning they open to 0.050 sooner and end later. however it really will not compare to a aftermarket cam

 

[9386BroncOH]

I'm running the the 35-512-8 cam in my F250 with a factory roller block 351W. Works really well with SD EFI and has good low end torque. I also am running the Truck Performer manifold on this engine. They both compliment each other pretty well. I did other modifications to the cylinder heads, but I'll leave it at that for now.

 

[ZackAttack]

I filled out the comp cams form and this is what I got back. It's important to realize that I specified everything they asked for including typing a note saying I was using the factory GT40P heads.

The recommendation initially was for:

31-600-8 so I called the guy out on it and he sent another e-mail that said it was a typo and proceeded to recommend 35-600-8 which has over .500 valve lift. So needless to say that was absolutely useless customer service. I think I'm going to look at other brands of cams.

 

[BigBlue 94]

Wow what a joker. The 31 series is retrofit for a non-roller block. 35 series is what you needed.

Shame their CS has gone downhill. When I did it, it was spot on, including full spec sheets.

Erson and Iskandarian (isky) make wonderful cams and both have been around since the dawn of time. Call them up and have a chat.

 

[MarktheShark]

I've done almost everything you have done. I put a new 94 roller engine in my 93, I have the edelbrock performer and the comp cam 512-8. Before I did that MAF upgrade, it ran like CRAP. It had a weird idle and wouldn't start the first time sometimes, I would have to start it again to get it going. I got the MAF upgrade from fiveology and it's running like a top now. I would recommend the 512-8, but if you're going to go the GT40 route, you might could do something slightly more aggressive.

 

[codycr6]

If you want to contact Competition Cams for a recommendation, PM me. I will put you in touch with a good friend of mine that works there and specs cams as well as tunes aftermarket fuel injection (FAST). One of the nicest guys you will ever talk to, and has been doing this forever. I can't give you his cell number, but I will call him and get his business number at Comp.

 

[Kingfish999]

Wow what a joker. The 31 series is retrofit for a non-roller block. 35 series is what you needed.

31 series is 302 firing order. 35 is 302HO/351 firing order. both of them are retrofit cams so neither are recommended.

not only is it over the .500 lift but its only 107* lobe separation which makes it idle like crap which is the reason its called the Thumpr cam series. even the 512 has 114* of separation which is good

 

[LVSteve]

Call James and tell him what your doing.
Comp Cams
1.800.999.0853
James Fry

Stop the madness

 

[Bruners4]

opc1:

 

[9386BroncOH]

I did both the online form and gave them a call. Seems calling them is a lot easier. I gave Lunati a call and their customer service was very helpful. The Lunati cam had less lift and longer duration versus the Comp cam having more lift and shorter duration.

 

[Kingfish999]

which cam did they recommend

 

[9386BroncOH]

Pretty sure it was Lunati PN#20350611.

 

[445 FE Bronco]

Short duration and steep ramps on a roller generate more compression especially with a shorter lobe center. Lift gives the cylinders more chance the enhance cross flow and breathing without reversion. Stock cams are emissions friendly so have built in dynamic compression reduction making less power especially in low end power. Short duration roller with steep ramps and 108 to 110 spread will give you gobs of torque. As far as brand I hate to be a troll but lunati has notoriously been a problematic cam since the 80s with lobes rounding off. Comp Cams has been my go to for cams forever and custom grinds are reasonable, watch the lifters though. I had a few that were stuck fully open and caused carostrophic valve train failure due to a seized plunger. Check ever lifter with a 1/4” extension to make sure they move, i then place them in a cup of strait 30 and cycle the lifter to purge air from the body.

 

[BigBlue 94]

X2 on the comp lifter seizing up.

 

[ZackAttack]

UPDATE:

After much long research I decided that buying a cam super similar to stock was not worth the work. So.....I bought new heads! No name block (most likely from China) but the machine shop is in Mass and they really knew what they were talking about. I ordered a custom set 200cc intake head with 2.02 int 1.60 exh, melling springs (single with damper) 135 closed, 325 open pressures .560 max lift and 60cc chambers. They do all the final machining as well so I feel pretty good about the choice.

Called comp cams: purchased 35-324-8 cam and with 1.6 rockers it will be .512 max lift, which is perfect for what I was looking for. Duration and lobe separation are also good for stock EFI (knowing me, I will tune tho).

So, not sure if I'll get flamed for this; but, I have a pair of GT40P heads with 1000 miles on them that I need to get rid of along with factory 5.8 intake manifolds (upper and lower), stock EFI hydraulic roller cam and FOMOCO water pump. PM if interested.

 

[codycr6]

Call James and tell him what your doing.
Comp Cams
1.800.999.0853
James Fry

Stop the madness

Hehe, I know James....