[Tom Mobley]

I think it was a passing cosmic ray that did it.

singed, innernetinjuneggzpurt

 

[cstraub]

Posting lifter failures is common, posting the route cause of the failure is rare. Valve springs and lifters take a ton of abuse but if properly maintained will give you many hours of service life.

 

[blumont]

Nothing to add here Gurly man with a gurly cam

 

[brngrhd]

Since this thread has gone 7 way can i install hyd on my solid cam? or is it not worth it. cam is a 265 273 @ .050 .650I .630E 110 LSA small block.... all the lifter faiures i hear about makes me not want to have to deal with that but it was what was in the motor when my dad bought his car and now it is in my car

 

[Munch69ProTour]

Posting lifter failures is common, posting the route cause of the failure is rare. Valve springs and lifters take a ton of abuse but if properly maintained will give you many hours of service life.

I think this is the problem, many expect 'years' of service not hours.

Most people don't realize that everything is a compromise.

 

[lun40119]

Nothing to add here Gurly man with a gurly cam

Chicks dig "MY" Bumpstick.........

 

[cstraub]

Since this thread has gone 7 way can i install hyd on my solid cam? or is it not worth it. cam is a 265 273 @ .050 .650I .630E 110 LSA small block.... all the lifter faiures i hear about makes me not want to have to deal with that but it was what was in the motor when my dad bought his car and now it is in my car

Run a good pressure fed type lifter, be sure your clearance for the lifter and bore is withing spec and run a good valve spring.

 

[lun40119]

Posting lifter failures is common, posting the route cause of the failure is rare. Valve springs and lifters take a ton of abuse but if properly maintained will give you many hours of service life.

To go along with that, its my opinion that alot of these guys ESPECIALLY the ones running SS BB valves are running way too small of pushrods.

 

[82elim]

My apologies, I was at work and my boss came by so i had to get off the net. Yes BBC 489 10.2 compression pump gas deal .700 custom grind roller, 4 years in the boat which I run hard, colorado river and local lakes. I was hoping to get 2 more months out of it before I tore it down to freshen up, rebuild or replace lifters etc upon inspection. That being said I will put an hour meter on it and monitor for more inspection intervals. Just kinda made me sick because I just built another 489, wolfplace afr 305's, custom ground solid roller for the velle. I always run the valves at least once to twicw a year depending hon how many oil changes, I have a dooley marine pan 10 qt, melling performance hv pump etc. I'm thinking idle time was the culprit. (no wake zones for long periods of time).

 

[MEJ1990TM]

I think this is the problem, many expect 'years' of service not hours.

Most people don't realize that everything is a compromise.

The cam that was in the '70 was one of those old junk factory flat tappet cams and it lasted just about forty years, two different engines, three cars, and over 100,000 miles. Can you see anything like that happening with todays solid roller cams?

 

[cstraub]

My bet is you will find weak springs. 4 years with the average boater putting 75 hours on a engine a boating season that works out to 30K miles on a .700" lift solid roller.

 

[cstraub]

The cam that was in the '70 was one of those old junk factory flat tappet cams and it lasted just about forty years, two different engines, three cars, and over 100,000 miles. Can you see anything like that happening with todays solid roller cams?

Whole different world now. Back then we the aftermarket enjoyed the big 3's quality control since flat tappet cams were what came in OEM vehicles. Not the same world anymore. Chinese cam core will run you about $4.50 and a hyd flat lifter is in the .70 range both in volume. My COST on what I consider to be the best flat tappet cam core with a finished lobe on it cost me $213. That is cam only.

 

[MEJ1990TM]

Whole different world now. Back then we the aftermarket enjoyed the big 3's quality control since flat tappet cams were what came in OEM vehicles. Not the same world anymore. Chinese cam core will run you about $4.50 and a hyd flat lifter is in the .70 range both in volume. My COST on what I consider to be the best flat tappet cam core with a finished lobe on it cost me $213. That is cam only.

I understand this is a different era. Do they make solid roller cams that are mild enough ,as far as the lift per duration goes, that they can have that kind of life span? I know it will be a ways before I am ready for anything with a solid roller, but if my options only consist of cams that have such high lifts that they will wear the lifters out in ten years I am not sure I want to go that route. I understand that any aftermarket cam with aggressive lobes will limit life though. The OEM cam was sure not an aggressive cam. It made the 402 run good though.

 

[cstraub]

I understand this is a different era. Do they make solid roller cams that are mild enough ,as far as the lift per duration goes, that they can have that kind of life span?

One of morels employees has a SBC with a low 600 lift solid roller that has 80k miles on it. The engine is 13 or 14 years old. I don't know if you consider that good, I do. Again if you monitor spring life that is the key. The OP with a .700" lift soild roller got 4 years out of it and he admits he was hard on it.

 

[MEJ1990TM]

One of morels employees has a SBC with a low 600 lift solid roller that has 80k miles on it. The engine is 13 or 14 years old. I don't know if you consider that good, I do. Again if you monitor spring life that is the key. The OP with a .700" lift soild roller got 4 years out of it and he admits he was hard on it.

I would consider that good. I doubt my Chevelle will see anywhere near 80,000 miles. Correction, I do not believe the engine that's in it will see anywhere near 80,000 miles.

 

[crazydavey]

My apologies, I was at work and my boss came by so i had to get off the net. Yes BBC 489 10.2 compression pump gas deal .700 custom grind roller, 4 years in the boat which I run hard, colorado river and local lakes. I was hoping to get 2 more months out of it before I tore it down to freshen up, rebuild or replace lifters etc upon inspection. That being said I will put an hour meter on it and monitor for more inspection intervals. Just kinda made me sick because I just built another 489, wolfplace afr 305's, custom ground solid roller for the velle. I always run the valves at least once to twicw a year depending hon how many oil changes, I have a dooley marine pan 10 qt, melling performance hv pump etc. I'm thinking idle time was the culprit. (no wake zones for long periods of time).

post of the month.....:thumbsup::thumbsup:

 

[82elim]

My bet is you will find weak springs. 4 years with the average boater putting 75 hours on a engine a boating season that works out to 30K miles on a .700" lift solid roller.

Thanks for the insight, I know you are very respected here as well as performance boats, yellowbullet etc. I am going to drop the heads off next week and finish disassembling the short block as the lifter in question mushroomed, hope I don't have any damage to the lifter bore.:thumbsup: btw RHS heads set up for .750 roller 320cc, runs 5500 with A stainless impeller 83mph on pump gas, heavy lay up 19ft eliminator.

 

[GoFast Beaumont]

what rpm zone do you run in with your boat?? i know on my eagle outlaw i spend 90% of my time at between 3-4k+. if you have X amount of hours at these rpms or higher, mayby it was just due for a rebuild. But i run rivers, not lakes. little different

 

[blumont]

Chicks dig "MY" Bumpstick.........

Ya, I remember those days, a long time ago