402 stroker
Safety Car
Joined: Apr 2004
Posts: 3,818
Likes: 4
From: San Bruno ca
I have a 402 in my frc and i love the the tq. (489 rwtq) I got mine from SDPC I think in the long run you will be happier with SDPC instead of SLP. You might want to check out ls1tech.com to find out more info on the motor and the builders 
Race Director
Joined: Sep 2003
Posts: 13,550
Likes: 6
From: Now in God's Country, the Big Sky, Montana!
Cruise-In 7-8-9-10 Veteran
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Sorry, just noticed the "slp". My motor is actually coming from MTI with Lunati internals.
Team Owner
Joined: Jul 1999
Posts: 50,808
Likes: 9
From: Buy USA products! Check the label! Employ Americans
Originally Posted by Cajundude
Sorry, just noticed the "slp". My motor is actually coming from MTI with Lunati internals.
made in USA.Eagle cranks made in China.
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
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Drifting
Joined: May 2003
Posts: 1,715
Likes: 1
From: cAshburn VA
Originally Posted by jhong321
I think in the long run you will be happier with SDPC instead of SLP.
Get a set of ETP or AFR 225s and 90mm im/tb setup to go with the shortblock. Man, if I only had the dough...
Former Vendor
Joined: Feb 2004
Posts: 9,615
Likes: 13
From: Burlington NC
That motor looks to me like it has been rattleing. Too much timming, not enough fuel. A good tune on a motor with even cast pistons would last longer. Just because one guy bought a motor and the pistons came apart in every hole doesn't mean it's a bad piston design. I have no ties to SLP or Ross pistons, but I think they need some help about now.
Melting Slicks
Joined: Nov 2003
Posts: 2,555
Likes: 5
From: Fredericksburg VA
As I posted in the thread over there, something doesn't make sense. He didn't use the old intake, so there is no chance previous junk from the old motor was the culprit.
I don't see how anyone can point the finger anywhere at this point. Could be a bad shortblock/ pistons, could be a bad assembly at the shop for the long block, or could be the tune.
Sounds to me like the guy just wants to vent about the situation, and he's getting a little support from the installer, so he's not mad at them. SLP needs to COMMUNICATE better in the beginning to stave off little issues like this...
Mike
I don't see how anyone can point the finger anywhere at this point. Could be a bad shortblock/ pistons, could be a bad assembly at the shop for the long block, or could be the tune.
Sounds to me like the guy just wants to vent about the situation, and he's getting a little support from the installer, so he's not mad at them. SLP needs to COMMUNICATE better in the beginning to stave off little issues like this...
Mike
Race Director
Joined: Jul 2005
Posts: 11,308
Likes: 1
From: The Beautiful Greater Bay Area California
Originally Posted by bluewire
There have been many problems reported with the slp motors, I would stay clear of them. I would look at the one's being offered by TSP or SDPC.
Thread Starter
Racer
Joined: Jul 2005
Posts: 381
Likes: 0
From: bluff city tn.
car has around 38000 had afr heads valve spring seats started to come apart where the spring sit in the head 
pulled them was cleaning head bolt threads foundposs. crack or hole in 4th hole back on top driver side going to get a bore scope and see how bad car ran very good til the head problem it dynoed 426 rwhp lasted for about 1500 miles that is why i am looking at a 402
pulled them was cleaning head bolt threads foundposs. crack or hole in 4th hole back on top driver side going to get a bore scope and see how bad car ran very good til the head problem it dynoed 426 rwhp lasted for about 1500 miles that is why i am looking at a 402
Instructor
Joined: Apr 2005
Posts: 156
Likes: 0
From: Michigan
Originally Posted by 198C5
anyone running a slp 402 my 98 needs a new eng. thinking about the 402 my old motor had 426 rwhp just wondering if it is worth the money?
thinking about the 402 my old motor had 426 rwhp just wondering if it is worth the money?If on a budget than at least an LS2 shortblock!
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
This will be home built - see sig
