FAQs - Frequently Asked Questions
Approximately 2-3 weeks
Yes but it extends the turn-around time. There is also an additional charge.
It would be advisable ESPECIALLY if the teardown is for a failure and not a routine service. Re-inspection of pumps being used in race engines is routine for us. The service charge for this is minimal, depending on model
Always replace the oil bypass kit when rebuilding an engine. There are parts that are wear items – and should be replaced.
Yes, a combination of the friction reducing coating and the preservative often cause a stiff spot. This in no way affects the performance once the engine is started.
We accept: VISA, Mastercard, Discovery, AmEx, and Paypal. Wire transfers and Zelle are also available. Please contact us for any other payment options
No. At this time our components on hand are for the business inventory only.
NO. Porting & polishing are part of our rebuilding service. These services are done automatically one the units begin the service process.
Yes. However there is a provenance charge that will be applied.
Please contact us for any individual requests or needs on a specialty pump. There will be a provenance charge that is applicable for these special requests.
Tests consistently showed flow increases above 20%. With a cold engine it is common to see the oil pressure above the bypass valve value at IDLE (60-80 lbs). With the engine at operating temperature, the oil pressure will typically be above the bypass valve value on a 4000 RPMs. Of course, clearances inside of the engine affect the oil pressure as well as piston cooling jets, 3.2 liter chain tensioners, etc.
You must correctly prepare your shipment paperwork to avoid customs duties and taxes when, and where possible when making a repair and replace or warranty replacement shipment
See attached files for more info
Yes, and there is a machining procedure to accommodate the different pump. There is however a caveat to installing an over-sized pump in a different generation engine case/system. Download and read our discussion on the subject.
The performance of the pump should remain at the higher level throughout the service life of the engine.
As with all race/performance components, warranty is limited to the failed portion of the pump or the pump entirely. No other warranty is implied or expressed.
Rarely. Most certainly they are applied if the corrosion is excessive from submersion in water or the engine has had a rod bearing failure and the connecting rod has struck the top of the pump.
Upon inspection of your core and we discover a portion is damaged beyond repair, we will stop and notify you to discuss options.
YES. Our service is based on a core-exchange basis. (Please contact us for any special requests)

Still have questions?
WAREHOUSE
4270 Majestic View
Pahrump, NV 89060
E-Mail: info@gtseries1.com
Tel: 844-487-1787 or 909-592-1510