Richard Test So You Don't Have To!
Product Collections
Let customers speak for us
from 474 reviewsQuick shipping and product was as described.
I am very happy with my G42-1200. I got this to replace my s475 1.15 ar T6 on my 2004 Aviator DOHC 4.6 w/ aftermarket connecting rods, ring gap and ported heads on E85 in my 88' foxbody with a powerglide. Haven't been to the track yet but it will not hook with more than 6.5 lbs. of boost in high gear on the street ( 0 traction in 1st gear at <50% throttle) with 315/60/15's Hoosier D/R. Can't wait to see what it does with traction!!
Had to switch from the open 1.01 t4 to a divided 1.15 t4 turbine housing to help with spooling because my exhaust system was completely divided all the way up to the turbo. Went from 4200 rpm to make 101 kpa down to 3600 rpm.
Now only if Richard Holdner Performance sold budget 4.6 4V cams 😂
I bought a set of lifters and trays and had a issue with them with In ten mins someone called me from their personal number to help me on their day off and told me a way that could fix it and if it don’t, they will have me a new one coming my way soon
100% exactly what I needed. Great lifters and trays and they got to my door in 3 days! Highly recommend RHP!
Fits great!
Good fit and function for my 2007 Tahoe with a 6.0l swap and RHP G42 turbo!
Great value and trust his expertise!!
nice light hoodie at a great price
Great prices and fast shipping
Haven’t ran the motor yet but package was nice quality, price was great, and installation was simple. Can’t wait to fire it up!
Great cam and springs
A fun little add on that’s made of quality material. And I like that the turbine spins
Just as described
Es elegante muy bueno el servició
Super easy to use had bo problem removing harmonic balancer
Blog posts
-
How to Choose Injector size
Richard HoldenerChoosing the right injector size is simple math. Richard walks you through sizing for NA, turbo, E85, and gasoline applications across LS and import platforms.
How to Choose Injector size
Richard HoldenerChoosing the right injector size is simple math. Richard walks you through sizing for NA, turbo, E85, and gasoline applications across LS and import platforms.