what is this?(pic) and where to bolt engine to stand
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Joined: Nov 2008
Posts: 271
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From: Calgary, Alberta
Car: 1990 Iroc-Z28
Engine: 350HSR
Transmission: HD 700r4 B&M Stage2 SK
what is this?(pic) and where to bolt engine to stand
hey guys
so i got things here 1) what is this lil unit on the side of the plenum? just some EGR stuff? (putting in a HSR)

2) where should i bolt my new block to a engine stand? the only bolt holes there seem a lil small but i could be mistaken. THANKS
so i got things here 1) what is this lil unit on the side of the plenum? just some EGR stuff? (putting in a HSR)

2) where should i bolt my new block to a engine stand? the only bolt holes there seem a lil small but i could be mistaken. THANKS
Joined: Mar 2007
Posts: 1,698
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From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: what is this?(pic) and where to bolt engine to stand
That is the MAP sensor. You can just bolt the engine to the stand using the bolt holes from the bellhousing.
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Joined: Nov 2008
Posts: 271
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From: Calgary, Alberta
Car: 1990 Iroc-Z28
Engine: 350HSR
Transmission: HD 700r4 B&M Stage2 SK
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From: Davenport, Iowa
Car: Still a 3rd Gen
Engine: 450HP 355
Transmission: TH350
Axle/Gears: 9" with 4.11's
Re: what is this?(pic) and where to bolt engine to stand
just hook it up to a vacuum port.
Joined: Jun 2000
Posts: 5,364
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: what is this?(pic) and where to bolt engine to stand
MAP = Manifold Absolute Pressure, the sensor sends out a voltage signal dependent on the absolute manifold pressure (manifold vacuum is actually pressure lower than atmospheric, hence absolute pressure)
Bellhousing bolts are fine, use grade 8 bolts
Bellhousing bolts are fine, use grade 8 bolts
Thread Starter
Member
Joined: Nov 2008
Posts: 271
Likes: 0
From: Calgary, Alberta
Car: 1990 Iroc-Z28
Engine: 350HSR
Transmission: HD 700r4 B&M Stage2 SK
Re: what is this?(pic) and where to bolt engine to stand
also if anyone happends to know that size of bolt it needs thatd be awsome so i can pick some up on the way home from work. thanks!
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: what is this?(pic) and where to bolt engine to stand
Full manifold vac port, straight on the plenum and used solely for the MAP. No T-ed off connection.
3/8 UNC
3/8 UNC
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Thread Starter
Member
Joined: Nov 2008
Posts: 271
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From: Calgary, Alberta
Car: 1990 Iroc-Z28
Engine: 350HSR
Transmission: HD 700r4 B&M Stage2 SK
Re: what is this?(pic) and where to bolt engine to stand
these look like the right bolts?? ive never bolted a engine to a stand before and it just seems a lil sketchy.


Joined: Dec 2005
Posts: 6,499
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: what is this?(pic) and where to bolt engine to stand
Grade 8 bolts have 6 marks on teh top of the head of hte bolt - Grade 8 are the strongest you can get unless you get specialty stuff (think ARP). Grade 8 is more than strong enough to hold up a block. Thats the size of the bolt that holds the transmission to the engine, so dont stress too much over it. Just make sure it's long enough to thread in a good ways and that they're the right size, but most importantly make sure it's Grade 8.
Grade 8 bolt:

From the picture of yours, they seem like they're Grade 5 (they have 3 marks instead of 6), they'd probably work, but I'd go get some nice Grade 8 bolts from the hardware store if it were me.
Grade 8 bolt:
From the picture of yours, they seem like they're Grade 5 (they have 3 marks instead of 6), they'd probably work, but I'd go get some nice Grade 8 bolts from the hardware store if it were me.
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