? for those with big blocks

[GRAYTEXK5]

for those of you that have big blocks in your K5's...did you have to use different frame stands, or did it just bolt in? and what headers did you use? I talked to summit and jegs, and was thinking about some hedman elite headers...and they both said I have to get factory big block frame stands. is that true, or will they clear without them? just trying to find out what kinda problems I may run into, before I decide what to buy. thanks.

 

[RingMaster4x4]

My big block bolted right in with the factory small block motor mounts. I have headers off a 1978 nova on mine, but I can not say for sure that they would work for you as my frame may have be modified for them to fit. /forums/images/graemlins/dunno.gif

 

[islandblazin]

I have a 396 mounted onto a 350 small block mounts in my 72 blazer and it works great. except i had to cut the fan gaurd a little cause the belt rubbed a bit.

 

[big pappa b]

Mine bolted right in too using the small block mounts. I think the only difference is the small block mounts might make it sit up a little higher.
As for headers, I running Hooker Super comps made for a big block blazer

 

[GRAYTEXK5]

what kind of headers are you running, if any? I think what they were saying, was that I needed the frame stands for those particular headers. they said the hookers didn't say anything about it. but I was wanting to go with the elites, because they were cheaper.

 

[RingMaster4x4]

mine are headmen comps

 

[big pappa b]

Mine are the full length stle like the ones pictured only ceramic coated and covered with mud /forums/images/graemlins/frown.gif

 

[Yukon Jack]

What year K5 are you talking about?

I put a big block in my 69 K20 using the 69's small block motor crossmember but had firewall issues. I used Dynomax 67-87 2WD BBC headers fit, part number 86022 with a little frame grinding on the passenger side. Driver side fit perfectly.

 

[GRAYTEXK5]

it's a 79

 

[85 blazer]

I used dynomax headers for a 2wd and the stock small block frame mounts withe the 454 engine mounts no problems at all