305 help
#1
305 help
My 16 year old son recently purchased a 1984 firebird 5 speed 305 H code with a rod knock. I found a rebuilt long block from a 86 but I understand that my car is the old two piece rear main seal block and have 86 is a one piece. I'm a ford guy so this is all new to me. Can I use this block? Please advise
#2
Supreme Member
Re: 305 help
can use the '86 block- but will need to use '86-up flywheel because crank end is external balance and bolt pattern is different.
#3
Supreme Member
Re: 305 help
Yes you can use it. You can just go to autozone and order a 1986 305 V8 Firebird / camaro 5 speed flywheel and you are good to go. I believe the starter is the same.
The transmission will bolt up just fine same with the heads. The cam you will want to replace I would not swap a flat tappet between motors go fresh and break in properly per manufacturers instructions.
The transmission will bolt up just fine same with the heads. The cam you will want to replace I would not swap a flat tappet between motors go fresh and break in properly per manufacturers instructions.
#4
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Re: 305 help
Yup; starter is the same, clutch is the same, bell housing is the same. Only thing you have to change, is the flywheel.
Personally, I think it'd be kinda short-sighted NOT to replace the clutch at the same time, especially on a freshly purchased (i.e. unknown condition) car; but that's just me. Costs pennies, might save MAJOR aggravation acoupla weeks on down the road.
Personally, I think it'd be kinda short-sighted NOT to replace the clutch at the same time, especially on a freshly purchased (i.e. unknown condition) car; but that's just me. Costs pennies, might save MAJOR aggravation acoupla weeks on down the road.
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