waterpump /timing cover question
Thread Starter
Supreme Member




Joined: Feb 2005
Posts: 2,508
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
waterpump /timing cover question
Ok, this is a weird question but I already did a search and found no real results.
Does anybody like those torx bolts found on some of the 2.8 waterpumps and timing covers? I assume most people don't. I personally prefer the regular bolts found on the 3.1s and the 3.4s and older 2.8s.
So here are my questions.
1. Can I just use the regular waterpump/timing cover bolts from a 3.1 or 3.4 instead of the torx bolts from the 2.8 to bolt down the timing cover and waterpump? (swapping in a 3.4)
2. If so, what about the torque specs? Would it be the same as the torx bolts or would it be diferent?
3. Also, anyone recommend a certain brand of sealer to use on the bolts to make sure there are no coolant leaks and what not?
Thank you!
Does anybody like those torx bolts found on some of the 2.8 waterpumps and timing covers? I assume most people don't. I personally prefer the regular bolts found on the 3.1s and the 3.4s and older 2.8s.
So here are my questions.
1. Can I just use the regular waterpump/timing cover bolts from a 3.1 or 3.4 instead of the torx bolts from the 2.8 to bolt down the timing cover and waterpump? (swapping in a 3.4)
2. If so, what about the torque specs? Would it be the same as the torx bolts or would it be diferent?
3. Also, anyone recommend a certain brand of sealer to use on the bolts to make sure there are no coolant leaks and what not?
Thank you!
Senior Member
Joined: Jan 2007
Posts: 382
Likes: 0
From: Illinois
Car: 89 Firebird
Engine: 350 Ramjet
Transmission: 700R4
Axle/Gears: GM 9 bolt 3:27
I would think the install would be the same as the torx heads just make sure the hex bolts heads leave enough room for a socket
Joined: Mar 2006
Posts: 4,367
Likes: 15
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Yep, you can swap over to hex head bolts. I did that exact thng with my Franken60 build in my Jimmy.
Thread Starter
Supreme Member




Joined: Feb 2005
Posts: 2,508
Likes: 201
From: Hawaii
Car: 89' Firebird / 87' Formula
Engine: 3.4 / 5.0
Transmission: 700-R4
Axle/Gears: 3.42 / 3.42
hmmmm....I have to admit that i love the look of the torx and all....but working on them??? That be a different story! lol
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