RHS heads , are they good cylinder heads?

hitorx · May 7th, 2007, 06:44 PM

Is anyone know about RHS cylinder heads? Seems to be good product for the bucks. I just want to be sure that they are not PROCOMP cylinders heads sold for cheap price on Ebay's website. Lot of people are telling PROCOMP are not so bad but need modifications before bolt on. Lot of bugs have been reported.

Stangzilla · May 7th, 2007, 10:23 PM

Originally Posted by hitorx

Is anyone know about RHS cylinder heads? Seems to be good product for the bucks. I just want to be sure that they are not PROCOMP cylinders heads sold for cheap price on Ebay's website. Lot of people are telling PROCOMP are not so bad but need modifications before bolt on. Lot of bugs have been reported.

I'm sure ya know the drill.. Ya get what ya pay for...

bwb3 · May 8th, 2007, 12:04 AM

one of the mustang mags just tested them dyno/flow bench/etc. they really liked them so....

Stangzilla · May 8th, 2007, 01:01 AM

Originally Posted by bwb3

one of the mustang mags just tested them dyno/flow bench/etc. they really liked them so....

Yeah put them on a motor and check back after 15 or 20 thousand hard miles...

1slo5.0 · May 8th, 2007, 03:33 AM

RHS is Racing Head Service which I believe Comp Cams now owns. They make a decent head but they are toward the bottom of the barrel. You get what you pay for.

neverfastenough · May 8th, 2007, 10:29 AM

Yes they are owned by Comp Performance Group, Comp Cams, and I agree you get what you pay for. But, not everyone can afford to buy names, and I bet as long as you're not putting a gazillion hp in it like that black car right above me, it will be ok. If not, I never said anything, ok.

1slo5.0 · May 8th, 2007, 10:37 AM

Originally Posted by neverfastenough

Yes they are owned by Comp Performance Group, Comp Cams, and I agree you get what you pay for. But, not everyone can afford to buy names, and I bet as long as you're not putting a gazillion hp in it like that black car right above me, it will be ok. If not, I never said anything, ok.

Any head will be ok. Stock heads are ok. You get what you pay for.

hitorx · May 8th, 2007, 11:19 PM

I don't undestand. I've compared flow rate of RHS 200CC, 58CC aluminium head and they are better(mid flow) than 210CC Victor Jr head.
AFR(185CC) are great but 1900$$US, RHS about 1300-1400$US. I will pass them on flow bench anyway.

Stangzilla · May 8th, 2007, 11:32 PM

$1900 for AFR 185's?!!! Where are you buyin them from. I paid about 1400 for mine..

1slo5.0 · May 9th, 2007, 12:16 AM

Originally Posted by hitorx

I don't undestand. I've compared flow rate of RHS 200CC, 58CC aluminium head and they are better(mid flow) than 210CC Victor Jr head.
AFR(185CC) are great but 1900$$US, RHS about 1300-1400$US. I will pass them on flow bench anyway.

Whose flow bench did these numbers come from and were all of the heads run on the same bench? If not, its not a valid comparison.

hitorx · May 9th, 2007, 04:06 PM

Flow are on RHS web site and Edelbrock web site. RHS SBF 200CC have superior mid flow than SBF Edelbrock Victor Jr cylinder heads.

Stangzilla · May 9th, 2007, 11:23 PM

Well if thats the case then good. Flow will not be a prob. the only way I would trust those heads is to get a fully bare set and put top notch guides, valves, retainers, springs, ect.. and have a good machine shop set them up. I would not trust the parts they use that is prob where failure will occur.. Like I said check back when a car with those heads has 15-20,000 miles and see how they are holding up. by the time you do all that to a set of bare heads you will have enough invested to just get a set of AFR's, TrickFlow or something.. Me I would just save for a set of proven heads.. But if you are on a tight budget and cant wait then go for it but dont be suprised if it dont work out... Good Luck..

1slo5.0 · May 10th, 2007, 12:28 AM

Originally Posted by hitorx

Flow are on RHS web site and Edelbrock web site. RHS SBF 200CC have superior mid flow than SBF Edelbrock Victor Jr cylinder heads.

Comparing numbers from manufacturers is a crap shoot. Every company has the best flowing head, just ask them. You need to get numbers from a third party if you are going to do a comparison. What bore size did they use? Did they use a pipe on the exhaust? If so, what size?

86er · May 10th, 2007, 08:29 AM

Originally Posted by hitorx

Flow are on RHS web site and Edelbrock web site. RHS SBF 200CC have superior mid flow than SBF Edelbrock Victor Jr cylinder heads.

Id be happy to pull one of my Vic Jr's and go head to head with you on that wager

hitorx · May 10th, 2007, 07:42 PM

Yeah, maybe , I know Victor Jr are really good cylinders heads. I just want to know if a good company like Compcams can compare their cylinder heads to other good brand. Anyway tuning si so fun, no one have the same thinking about product. My friend is telling Dart pro 1 are shit, my other friend is telling Victor Jr is shit, lol, so pathetic. I'm buying RHS cylinder heads to say the same thing I guess lol ....

JBIGBOOTSY · May 10th, 2007, 07:55 PM

Originally Posted by hitorx

Yeah, maybe , I know Victor Jr are really good cylinders heads. I just want to know if a good company like Compcams can compare their cylinder heads to other good brand. Anyway tuning si so fun, no one have the same thinking about product. My friend is telling Dart pro 1 are shit, my other friend is telling Victor Jr is shit, lol, so pathetic. I'm buying RHS cylinder heads to say the same thing I guess lol ....

I got your back bro.. go with the cheapies.. Everybody on this site is only partial to what they have on thir car, There is no secret voodoo to moving air through aluminum. try em and let us know

hitorx · May 10th, 2007, 08:07 PM

Don't understand CHEAP, they are about same range price than other brand, 1200-1400 range.

1slo5.0 · May 10th, 2007, 11:46 PM

Originally Posted by JBIGBOOTSY

I got your back bro.. go with the cheapies.. Everybody on this site is only partial to what they have on thir car, There is no secret voodoo to moving air through aluminum. try em and let us know

Actually yes there is a science to airflow. Moving air thru aluminum (or any other material for that matter) isn't just a matter of cutting a hole and sticking some valves in it. That is exactly how back yard head porters destroy airflow on cylinder heads.

As far as being partial, I do have Trick Flow heads on my car and recommend any head that Trick Flow makes to anyone with a street car because I've used damn near every head they produce and they all make good power. But I'm not partial to them. I've used many different brands of heads so I have many different comparisons from experience to base my opinions on. One easy approach to this is to ask around for people running these heads and how they like them. I bet he has asked and hasn't found many if any people. When all else fails, stick with the tried and true parts.

ujslost · May 11th, 2007, 12:36 AM

Originally Posted by Stangzilla

$1900 for AFR 185's?!!! Where are you buyin them from. I paid about 1400 for mine..

No kidding $1900 , you need to call AFR!

I prefer afr or trickflows. Im just not an edelbrock head kind of guy. I like their intakes on carbed cars thats about all the edelbrock I do.

hitorx · May 11th, 2007, 12:57 AM

I'm giving a try to RHS heads and will tell you results about 1 month. Heads gonna be filled with Ferrea valves, not junk parts to get poor result.

May 7th, 2007, 06:44 PM	#1
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	RHS heads , are they good cylinder heads? Is anyone know about RHS cylinder heads? Seems to be good product for the bucks. I just want to be sure that they are not PROCOMP cylinders heads sold for cheap price on Ebay's website. Lot of people are telling PROCOMP are not so bad but need modifications before bolt on. Lot of bugs have been reported. __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

May 8th, 2007, 03:33 AM	#5
1slo5.0 Zippee is my step sister. 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 10,353	RHS is Racing Head Service which I believe Comp Cams now owns. They make a decent head but they are toward the bottom of the barrel. You get what you pay for. __________________ Thanks to: Trick Flow, Team Z Motorsports, Total Engine Airflow and Furo Racecraft My daily driver has 16 cylinders and 4400hp @ 1000 rpm....

May 8th, 2007, 11:19 PM	#8
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	RHS 200CC, 58CC aluminium heads I don't undestand. I've compared flow rate of RHS 200CC, 58CC aluminium head and they are better(mid flow) than 210CC Victor Jr head. AFR(185CC) are great but 1900$$US, RHS about 1300-1400$US. I will pass them on flow bench anyway. __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

May 8th, 2007, 11:32 PM	#9
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,267	$1900 for AFR 185's?!!! Where are you buyin them from. I paid about 1400 for mine.. __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

May 9th, 2007, 04:06 PM	#11
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	flow comparison Flow are on RHS web site and Edelbrock web site. RHS SBF 200CC have superior mid flow than SBF Edelbrock Victor Jr cylinder heads. __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

RHS heads , are they good cylinder heads?

RHS heads , are they good cylinder heads?

Re: RHS heads , are they good cylinder heads?

RHS 200CC, 58CC aluminium heads

Re: RHS 200CC, 58CC aluminium heads

flow comparison

Re: flow comparison

Re: flow comparison

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May 8th, 2007, 12:04 AM	#3
bwb3 Regular Join Date: Sep 2006 Location: Gainesville,Fl Posts: 98	one of the mustang mags just tested them dyno/flow bench/etc. they really liked them so....

May 8th, 2007, 10:29 AM	#6
neverfastenough Regular Join Date: Mar 2007 Location: FOB Salerno, Afghanistan Posts: 137	Yes they are owned by Comp Performance Group, Comp Cams, and I agree you get what you pay for. But, not everyone can afford to buy names, and I bet as long as you're not putting a gazillion hp in it like that black car right above me, it will be ok. If not, I never said anything, ok.

May 9th, 2007, 11:23 PM	#12
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,267	Well if thats the case then good. Flow will not be a prob. the only way I would trust those heads is to get a fully bare set and put top notch guides, valves, retainers, springs, ect.. and have a good machine shop set them up. I would not trust the parts they use that is prob where failure will occur.. Like I said check back when a car with those heads has 15-20,000 miles and see how they are holding up. by the time you do all that to a set of bare heads you will have enough invested to just get a set of AFR's, TrickFlow or something.. Me I would just save for a set of proven heads.. But if you are on a tight budget and cant wait then go for it but dont be suprised if it dont work out... Good Luck.. __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

May 10th, 2007, 07:42 PM	#15
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	Yeah, maybe , I know Victor Jr are really good cylinders heads. I just want to know if a good company like Compcams can compare their cylinder heads to other good brand. Anyway tuning si so fun, no one have the same thinking about product. My friend is telling Dart pro 1 are shit, my other friend is telling Victor Jr is shit, lol, so pathetic. I'm buying RHS cylinder heads to say the same thing I guess lol .... __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

May 10th, 2007, 08:07 PM	#17
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	Don't understand CHEAP, they are about same range price than other brand, 1200-1400 range. __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

May 11th, 2007, 12:57 AM	#20
hitorx Newbie 1981 Mercury Capri Join Date: Mar 2007 Location: Québec, Canada Posts: 29	I'm giving a try to RHS heads and will tell you results about 1 month. Heads gonna be filled with Ferrea valves, not junk parts to get poor result. __________________ 1981 Capri, 2003 Cobra brakes, 331CI, FR500 18" wheels, 1.9" drop

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