TPi type and spark plug help
#1
TPi type and spark plug help
Hello all, just joined and hope you can help. I have a Land Rover Defender with a Chevy TPi engine, a company called Overfinch used to do conversions here in the U.K.
I would love to know more about the engine and also I want to upgrade the spark plugs. Would NGK TR55IX be correct for this?
Thank you for any help
James
I would love to know more about the engine and also I want to upgrade the spark plugs. Would NGK TR55IX be correct for this?
Thank you for any help
James
#2
Supreme Member
Join Date: Jul 1999
Location: Adrian, Mi, USA
Posts: 1,551
Likes: 0
Received 25 Likes
on
20 Posts
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: TPi type and spark plug help
89 and newer TPI. (Speed density)
Block casting shows 96 and up Vortec? That seems kind odd.
Block casting shows 96 and up Vortec? That seems kind odd.
#4
Re: TPi type and spark plug help
It should be all new parts, I think they started doing the conversion in 1997 and this one was about 2002.
Anyone able to advise what iridium plugs to fit?
thnaks
Anyone able to advise what iridium plugs to fit?
thnaks
Trending Topics
#8
Supreme Member
Join Date: Jul 1999
Location: Adrian, Mi, USA
Posts: 1,551
Likes: 0
Received 25 Likes
on
20 Posts
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: TPi type and spark plug help
If you can get Champion plugs, try RV15YC4.
Short of that, NGK 3547 should work. They're only £562.81 there:
https://www.amazon.co.uk/NGK-SPARK-P.../dp/B0018K1FIC
Short of that, NGK 3547 should work. They're only £562.81 there:
https://www.amazon.co.uk/NGK-SPARK-P.../dp/B0018K1FIC
#9
Moderator
iTrader: (3)
Re: TPi type and spark plug help
do you know how I would identify if it's a vortec head?