Vortec Pro 496
We chatted about a year ago if you remember. I appreciate your input. The car is turning out exactly as planned. I was amazed at the mileage, and as you say a streetable car with that much power....it's a testament to the abilities of Mark Jones.
Alan were you there?
Did you discuss the issue with me.?
Did you see the engine for yourself?
Did you work on the engine?
THE ANSWER IS NO, SO YOU HAVE COMPLETELY LIED AND MADE UP YOUR STATEMENTS......
We are not some complete novice that know nothing, we have been dealing with engines for years, and it was the first time and last time I will ever buy an engine long distance....... Even when we wanted to open the motor up and see what was wrong, Vortecpro cried bloody murder and threaten to void the warranty every time.....
You are only repeating what Mark told you and and Mark Jones never saw the motor because he did not want it back... He crawfished hard.... I have proof.......
The engine leaked coolant out of the freeze plugs from possible core shift( not properly csonic checking) and poor craftmanship.... You made up excuse is ludacris.... When I told Vortecpro it was leaking, his exact word were "put some alumiseal on it" ...lol $5800 engine leaking after 1 month, no track time.... Then tell them about the used carb he sold me with the chipped Bowl.... Or the Dizzy that was not setup correctly or tuned....... Tell them about the Dyno sheets, when he called me and said "I did not put your dyno sheets in the crate, I can mail them to you" I said well man I really wanted my sheets, then he said I will fax them over and mail them to you..." He faxed one sheet that was coppied and pasted numbers, no time, no real uncorrected numbers on it only 1 sheet when it should have been at least 3-4 sheets.. So I called him and said " Man I need a better version than this, and he said I will mail them to you"... I never got them.....
Then I was suppose to get Crane Golds rockers, He put some knock offs on their...... I asked him about that, another excuse.......
Alan you yourself blew a headgasket on your motor and then accepted the blame....lol Then you burned up the top of your pistons.... Now funny samething happen to Sinster too... and other things have happend.... But what happend is the mods often delete the bad stuff on TC so people never know the truth.... I have never used any alias..... You sign in here as Ajrothm and Shouldn't be here on TC..... So I guess you have an alias? I have two names I have ever used Shonuff and Bozzhawg.... and thats it on the web..... they can check the IP's I don't troll.....
Mark Jones aka Vortecpro shill posts and tries to sell engines on the web, but the interesting thing is he does not and will not pay to be a sponsor or vendor on any site..... Why? because he will have to be held responsible to the rules and guidelines of the Autoforum or forum rules..... If he wants to sell engines here, all he has to do is call AutoGuide.com or Corvettes Forum vendor sales team and it can be done, but after 4 years of trying to sell engines on Auto forum sites he will not pay? I wonder why? He is not a sponsor on any site, but he post his dynos all over these sites to phish for business. And if you follow these sites it is the same guys responding everytime
All I got to say is check him out via the BBB, EL Paso County Clerk, Colorado State, and you will find nothing.. This guys sells his engines off a cellphone with no landline phone..... All I am saying is do your homework and find out who these guys really are before you buy an engine..... If you buy an engine long distance and something goes wrong are you going to ship a 650lb engine back across the country? In 95% of the cases an out of state builder will not take responsiblity..... NO MAN HAS EVER BUILT ANYTHING PERFECT.... AND YOU ARE FOOLISH TO BELIEVE THAT ANYTHING MAN MADE WILL BE PERFECT EVERYTIME...... It is very foolish to think so......
My question is, if he is such a great builder and great business, why did I not recieve my real dyno sheets? Why did I not recieve a written reciept... And when I asked him for a written reciept, he said "He does not give them out" but he told me this after I got the motor...... Why does he not provide a full blueprint of the tolerances, measurements of the motor.....
Alan quick question for you... did you recieve a written reciept? Did you recieve a written blueprint of the tolerances of your motor?
this is real talk Mods, you must protect your members from Shill Posting and guys trying to sell stuff on here without paying to be a vendor..... Guys are allowed to post and recomend guys for services, but when something goes wrong, then the mods are like settle that outside the forum and the negative or truth comments end up getting deleted.. So the system works for the sellers whether they are good or bad..... and that is the loop hole Vortecpro and others are captializing on selling products in interent forums ...
SHILL POSTING
http://www.ag.ny.gov/media_center/20...uly14b_09.html
Bozz
I got a motor from mark. Same story, never received the dyno paperwork, still going on years of asking. Calling him he puts you down when you have a question. Worse of all the rear main leaked from day one. Still leaking, but I'm going to sell the engine and build my own.
I read all the forums and went with mark because his reputation seemed great. But the motor cost more than advertised, you have to buy carb and distributor, and after purchase service is bad. I was quoted a hp rating on my motor, but never given dyno sheets, and I know I'm 100 hp off what was quoted.
My fault, lesson learned, cost me 6k, but I'll build my next one. Maybe mark builds great motors, he may, but mine was not.
Recently refreshened it, it looked GREAT inside considering the abuse, rings/bearings/valvetrain only.....fresh show quality paint on the motor, and it still doesn’t leak a drop. I was there when Mark dynoed it, handed me about 20 pulls worth of dyno sheets. I took it home, slapped it in the car and ran the fastest mph it has ever ran and in worse air.
I can’t complain a bit about Mark’s engines. That’s the only guy I’ll ever get BBCs from.
I see that this is your first post? This is a 5-year-old thread. If you are asking for dyno sheets for years, my guess is you will never get them.
Recently refreshened it, it looked GREAT inside considering the abuse, rings/bearings/valvetrain only.....fresh show quality paint on the motor, and it still doesn’t leak a drop. I was there when Mark dynoed it, handed me about 20 pulls worth of dyno sheets. I took it home, slapped it in the car and ran the fastest mph it has ever ran and in worse air.
I can’t complain a bit about Mark’s engines. That’s the only guy I’ll ever get BBCs from.
I see that your car weighs 3700 lbs.? Is that with you in it? I weighed mine yesterday without me in it and it came in at 3320 lbs.
The Best of Corvette for Corvette Enthusiasts
I read all the forums and went with mark because his reputation seemed great. But the motor cost more than advertised, you have to buy carb and distributor, and after purchase service is bad. I was quoted a hp rating on my motor, but never given dyno sheets, and I know I'm 100 hp off what was quoted.
My fault, lesson learned, cost me 6k, but I'll build my next one. Maybe mark builds great motors, he may, but mine was not.
I can only guess the reason Mark may or may not give dyno sheets is due to the elevation of his shop in Colorado. A dyno at that elevation in July will NOT show the same numbers as a dyno at sea level in January. From what I've read track results (e.t. and mph) back up his claims.
Last edited by jim2527; Apr 7, 2019 at 12:35 PM.




I read all the forums and went with mark because his reputation seemed great. But the motor cost more than advertised, you have to buy carb and distributor, and after purchase service is bad. I was quoted a hp rating on my motor, but never given dyno sheets, and I know I'm 100 hp off what was quoted.
My fault, lesson learned, cost me 6k, but I'll build my next one. Maybe mark builds great motors, he may, but mine was not.













