Torque specs for head bolts on an inline? - Chevy Nova Forum
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Old 18th-July-2006, 03:14 PM   #1
simmondj

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Torque specs for head bolts on an inline?

Okay, so I am going to avoid the 292 because of too many headaches getting it to fit my car. Instead I found the head from a 250 that I am going to bolt on my 194.

(a) What is the correct torque for the head bolts??

(b) are there any tips for doing the swap, I have never done one before?
(I know to keep all the push rods in order and check for warped rods)

(c) How do I check to make sure the head I am buying is okay and not another disaster like the cracked head that is already on the car?

Thanks again guys
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Old 18th-July-2006, 03:39 PM   #2
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(a) 75 ft/lbs. Go to 50 lbs, 60 lbs, then 75 lbs all the way around the bolts to draw it down flat.

(b) Make sure everything is clean. Clean engines are happy engines.

(c) Visually inspect for cracks, damage, or discoloration. See if the valves are even with the bottom of the head and the seats aren't sunk. Use a spring checker to see if the valve springs are still okay. Best idea - go to the machine shop and have them magnaflux and rebuild the head.

Kev
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Old 19th-July-2006, 01:06 PM   #3
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Take a machinist's straight edge and make sure the head and block are both flat. If the motor got hot due to the head problem it is wise to check.

Make sure the waterpump is installed in the block when you torque the head. It helps support the area the left front bolt screws into.

If you are doing the job alone, get a couple of long bolts, or cut off the heads off a couple of extra head bolts to use as guides to line the head and gasket up. The weight and size of the head can make it difficult to line up and keep the gasket from moving. Just make sure you can get the guide studs back out!!

Good luck on getting it back together.
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Old 19th-July-2006, 02:24 PM   #4
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Not sure how you'd get this home but here you go if it will help you. This is a NC area. RM

Author: Dan
E-mail: Leat5914@bellsouth.net
Date: 7/19/2006 11:55:26 AM
Subject: Chevy 235 motor F/S
Message: 60-61 235 CI. inline 6 F/S, motor ran when pulled been in dry storage for 4 years was rebuilt 2 yrs prior , motor compleate less carb,has all belts, pulleys, starter, 3 spd bell housing, gotta go $100 obo. email or call 704-648-6166
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Old 20th-July-2006, 10:26 AM   #5
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Thanks guys,

I went and picked the 250 head up yesterday. It was a piece of crap. The chambers and valves were all rusted cause the guy stored the engine with the manifolds off and water got in. What a nasty deal. That was 3 hours of drive time for a piece of junk.

I took my 194 head to a machine shop and they thought they might be able to repair the crack, but one of the oldtimers was concerned about the repair not holding because the crack was right on the weakest part of the head around the first bolt hole. I trust his judgement.

I found a cheap 230 out of a Chevelle and I think I am gonna drop that in and be done with the whole fiasco.
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Old 20th-July-2006, 09:49 PM   #6
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Thanks for the help guys. I'll let ya know how things turn out.
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